Anonymous Abbreviation List [9,707 entries]
A (1390 abbreviations)
3AB	3-aminobenzamide.
A&B	apnea and bradycardia.
A&BC	air and bone conduction.
A&I	allergy and immunology.
A&P	anterior and posterior.
A&P	auscultation and palpation.
A&P	auscultation and percussion.
A&W	alive and well.
A	adenine.
A	alanine.
A	arteriole.
A	asymptomatic, no symptoms (e.g. in Hodgkin lymphoma).
a	autopsy.
A/B	acid-base ratio.
A/G	albumin/globulin ratio.
A/O	alert and orientated.
A/V	ampere/volt.
A/V	arteriovenous.
A>B	air greater than bone (conduction).
A1	aortic first sound.
A1AT	alpha-1-antitrypsin.
A2	aortic second sound.
A2U	alpha 2u-globulin.
A-a 02	alveolo-arterial oxygen tension.
aa seq	amino acid sequence.
aa	(Greek: Ana) of each.
AA	arachidonic acid.
aa	arteries.
AA	reactive (secondary) amyloidosis.
AAA	abdominal aortic aneurysm.
AAA	adenine-adenine-adenine codon for lysine.
AAA	diagnostic arthroscopy, operative arthroscopy, and possible operative arthrotomy.
AAAASF	American Association for Accreditation of Ambulatory Surgery Facilities.
AAAP	activity of antiactivator in plasma.
AABB	American Association of Blood Banks.
AAC	adenine-adenine-cytosine codon for asparagine.
AACPDM	American Academy for Cerebral Palsy and Developmental Medicine (also: AAOS Specialty Societies).
AACR	American Association for Cancer Research.
Aad	aminoadipic acid.
AADC	amino acid decarboxylase.
AAE	American Association of Endodontists.
AAETS	American Academy of Experts in Traumatic Stress.
AAF	2-acetylaminofluorene.
AAF	anterior auditory field.
AAF	astrocytoma with atypical/anaplastic foci.
AAF/OL	anaplastic astrocytomas /oligodendrogliomas.
AAFP	American Academy of Family Physicians.
AAG	adenine-adenine-guanine codon for lysine.
AAHKS	American Association of Hip and Knee Surgeons (also: AAOS Specialty Societies).
AAHS	American Association for Hand Surgery (also: AAOS Related Organizations).
AAL	anterior axillary line.
AAMC	Association of American Medical Colleges.
AAMI	Advancement of Medical Instrumentation.
AAMT	American Association for Medical Transcriptionists.
AAN	American Academy of Neurology.
AANA	Arthroscopy Association of North America (also: AAOS Related Organizations).
AANOS	The American Academy of Neurological and Orthopaedic Surgeons.
AANS	American Association of Neurological Surgeons.
AAO	American Academy of Ophthalmology.
AAo	ascending aorta.
AAOC	antacid of choice.
AAofA	Ambulance Association of America.
AAOFAS	American Association of Orthopaedic Foot and Ankle Surgeons.
AAOHN	American Association of Occupational Health Nurses.
AAOM	American Academy of Oral Medicine.
AAOO	American Academy of Ophthalmology and Otolaryngology.
AAOP	American Academy of Oral Pathology.
AAOP	American Academy of Orthotists and Prosthetists.
AAOPP	American Association of Osteopathic Postgraduate Physicians.
AAOS	American Academy of Orthopaedic Surgery.
AAOT	Asociacion Argentina de Ortopedia y Traumatologia (Argentinian Orthopaedic Association).
AAOx3	awake, alert and oriented x 3 (to person, place and time).
AAP	air at atmospheric pressure.
AAP	American Academy of Pediatrics.
AAP	American Academy of Pedodontics.
AAP	American Academy of Periodontology.
AAP	American Academy of Psychoanalysis.
AAP	American Academy of Psychotherapists.
AAP	American Association of Pathologists.
AAP	aminoantipyrine.
AAP	Association for the Advancement of Psychoanalysis.
AAP	Association of Academic Physiatrists.
AAP	Association of American Physicians.
AaP02	(A-a) P02, alveolo-arterial oxygen tension difference.
AAPA	American Academy of Physician Assistants.
AAPA	American Association of Pathologist Assistants.
AAPB	American Association of Pathologists and Bacteriologists.
AAPC	antibiotic-associated pseudomembranous colitis.
AAPCC	adjusted annual per capita cost.
AAPCC	adjusted average per capita cost.
AAPCC	American Association of Poison Control Centers.
AaPco2	(A-a)Pc02 alveolo-arterial carbon dioxide tension difference.
AAPF	anti-arteriosclerosis polysaccharide factor.
AAPH	2,2'-azobis-(amidinopropane) dihydrochloride.
AAPHD	American Association of Public Health Dentists.
AAPHP	American Association of Public Health Physicians.
AAPL	American Academy of Psychiatry and the Law.
AAPM&R	American Academy of Physical Medicine and Rehabilitation.
AAPM	American Association of Physicists in Medicine.
AAPMC	antibiotic-associated pseudo-membranous colitis.
AAPMR	American Academy of Physical Medicine and Rehabilitation.
AAPOS	American Association for Pediatric Ophthalmology and Strabismus.
AAPP	American Academy on Physician and Patient.
AAPPO	American Association of Preferred Provider Organizations.
AAPS	American Association of Plastic Surgeons.
AAPS	Arizona Articulation Proficiency Scale.
AAPS	Association of American Physicians and Surgeons.
AAPSM	American Academy of Podiatric Sports Medicine.
AAR	active avoidance reaction.
AAR	acute articular rheumatism.
aar	against all risks.
AAR	antigen-antiglobulin reaction.
AARC	American Association for Respiratory Care.
AARDA	American Autoimune Related Diseases Association.
AARE	automobile accident, rear end.
AAROM	active assertive range of motion.
AAROM	active assisted range of motion.
AARP	American Association of Retired Persons.
AAS	Aarskog-Scott (syndrome).
AAS	acid aspiration syndrome.
AAS	alcoholic abstinence syndrome.
AAS	American Academy of Sanitarians.
AAS	American Analgesia Society.
AAS	aneurysm of atrial septum.
AAS	anthrax anti serum.
AAS	aortic arch syndrome.
AAS	atomic absorption spectrophotometry.
AASD	American Academy of Stress Disorders.
AASH	adrenal androgen stimulating hormone.
AASH	American Association for the Study of Headache.
AASK	African American Study of Kidney Diseases and Hypertension Pilot Study.
AASP	acute atrophic spinal paralysis.
AASP	American Association of Senior Physicians.
AASP	ascending aorta synchronized pulsation.
AASS	American Association for Social Security.
AAST	American Association for the Surgery of Trauma.
AAT	Aachen Aphasia Test.
AAT	academic aptitude test.
AAT	alanine aminotransferase.
AAT	alkylating agent therapy.
AAT	alpha-1-antitrypsin.
AAT	atrial triggered (pacemaker).
AAT	auditory apperception test.
AAT	automatic atrial tachycardia.
AATS	American Association for Thoracic Surgery.
AAU	acute anterior uveitis.
AAU	adenine-adenine-uracil codon for asparagine.
AAV	adeno-associated virus.
AAVMC	Association of American Veterinary Medical Colleges.
AAVP	American Association of Veterinary Parasitologists.
AAVPT	American Academy of Veterinary Pharmacology and Therapeutics.
AAW	anterior aortic wall.
AAWD	American Association of Women Dentists.
AAWM	American Academy of Wound Management.
AB, Ab	abortion.
AB	abdominal.
AB	abnormal.
ab	abortion.
AB	Ace bandage.
AB	active bilaterally.
AB	aid to the blind.
AB	alcian blue.
AB	alertness behavior.
AB	antibiotic.
Ab	antibiotic.
ab	antibody.
Ab	antibody.
AB	antibody.
AB	antigen binding.
AB	apex beat.
AB	asbestos body.
AB	asthmatic bronchitis.
AB	axiobuccal.
aB	azure B.
AB	Bachelor of Arts (Lat.Artium Baccalaureus).
AB	blood group AB.
ABA	abscissic acid.
ABA	allergic bronchopulmonary aspergillosis.
ABA	American Board of Anesthesiologists.
ABA	antibacterial activity.
ABA	arrest before arrival.
ABA	Arthroscopie Belge - Belgian Arthroscopy Association.
ABAT	American Board of Applied Toxicology.
Abb	abbreviations.
ABB	Albright-Butler-Bloomberg syndrome.
ABB	American Board of Bioanalysis.
ABB	Asea Brown Boveri.
ABBQ	Acquired Immunodeficiency Syndrome Beliefs and Behavior Questionnaire.
abbr	abbreviation, abbreviated.
ABC	absolute basophil count.
ABC	absolute bone conduction.
ABC	acalculous biliary colic.
ABC	acid balance control.
ABC	aconite-belladonna-chloroform.
ABC	advanced breast cancer.
ABC	airway, breathing, and circulation.
ABC	alignment, blue, calcium (synovial fluid pearls in gout and pseudogout).
ABC	alternative birth center.
ABC	alum, blood, and charcoal (purification and deodorizing method).
ABC	alum, blood, and clay (sludge deodorizing method).
ABC	American Blood Commission.
ABC	aneurysmal bone cyst.
ABC	antigen-binding capacity.
ABC	apnea, bradycardia, cyanosis.
ABC	aspiration biopsy cytology.
ABC	aspiration needle biopsy.
ABC	assessment of basic competency.
ABC	atomic, biological, and chemical (warfare).
Abc	autoantibodies to collagen.
ABC	avidin-biotin complex.
ABC	axiobuccocervical.
ABCC	Atomic Bomb Casualty Commission.
ABCD	airway, breathing, circulation, differential diagnosis (or defibrillate) - in cardiopulmonary resuscitation.
ABCD	asymmetry, borders irregular, color variegated, diameter > 6 mm (assessment of melanoma).
ABCDE	airway, breathing, circulation, disability, exposure/environmental control - trauma protocol.
ABCDE	botulism toxin pentavalent.
ABCDEFGH	air ways, bones, cardiac shadow, diaphragm, effusions, fields (pulmonary), gastric, hardware (chest X-ray reading mnemonic).
ABCDES	abnormal alignment, bones-periarticular osteoporosis, cartilage joint space loss, deformities, marginal erosions, soft tissue swelling (x-ray features in rheumatoid arthritis).
ABCDES	adjust medication, bacterial prophylaxis, cervical spine disease, deep vein thrombosis prophylaxis, evaluate extent and activity of disease, stress-dose steroid coverage.
Abd	(abdere) abdomen.
Abd	abdominal.
Abd	abduction.
ABE	acetone-butanol-ethanol.
ABE	acid-base equilibrium.
ABE	activity before exercise.
ABE	actual base excess.
ABE	acute bacterial endocarditis.
ABE	acute bacterial exacerbations of chronic bronchitis.
ABE	Adult Basic Education Programs.
ABE	American Board of Endodontics.
ABE	aminobenzoate.
ABE	anode-break excitation.
ABE	antisheep beta-endorphin.
ABE	atypical bronchial epithelium.
Abe	autoantibodies to elastin.
ABE	average bioequivalence.
ABe	Averrhoa bilimbi.
ABE	estradiol bound to albumin.
ABE	trivalent botulinic antitoxin.
ABE-1	a strain of the psychrophilic marine bacterium Vibrio ABE-1.
ABE-I	anion-binding exosite I.
ABE-II	anion-binding exosite II.
Abeta	beta-amyloid (component of Alzheimer's disease plaques).
ABF	alpha-L-arabinofuranosidases.
ABG	arterial blood gases.
ABG	autogenous bone graft.
ABI	ankle to brachial index.
ABJS	Association of Bone and Joint Surgeons (AAOS Specialty Societies).
ABMA	anti-basement membrane antibody disease (Goodpasture's syndrome).
ABMS	American Board of Medical Specialties.
ABMT	autologous bone marrow transplant.
ABN	abducens nucleus.
AbN	ablation nephropathy.
ABN, Abn	abnormal.
abn	abnormality of a chromosome (e.g.abn 12p).
ABN	active bulimia nervosa (BN).
ABN	acute bacterial nephritis.
ABN	acute brachial neuropathy/neuritis.
ABN	advance beneficiary notices.
ABN	alkali-treated bound niacin.
ABN	anterior BNST lesions (BNST, bed nucleus of the stria terminalis).
AbN	antibody nitrogen.
AbN	antibody to the N terminus (of a protein or peptide).
ABN	arched-back nursing (about laboratory rats).
ABN	artificial background noise.
ABN	aseptic (avascular) bone/bone marrow necrosis.
ABN	Association of British Neurologists.
ABN	endo-1,5-alpha-L-arabinase.
ABN	The Brazilian Academy of Neurology.
Abn-cbd	abnormal cannabidiol.
ABO	blood grouping system.
ABOS	American Board of Orthopaedic Surgery.
ABP	American Board of Pathology.
ABP	American Board of Pediatrics.
ABP	androgen binding protein.
ABPA	allergic bronchopulmonary aspergillosis.
ABPB	abductor pollicis brevis (also APB).
ABPL	abductor pollicis longus (also APL).
ABR	auditory brainstem response audiometry.
ABS	American Back Society.
ABS	arterial blood pressure.
ABTA	American Brain Tumor Association.
ABVD	adriamycin, bleomycin, vinblastine, and dacarbazine (regimen used to treat Hodgkin's disease).
ABW	actual body weight.
AC	acromioclavicular joint.
AC	air conduction.
AC	alternating current.
ac	ante cenam, before meal/s.
AC/SIUG	ambulatory care special-interest user group.
ACA	adenine-cytosine-adenine codon for threonine.
ACA	American Chiropractic Association.
ACA	Amputee Coalition of America (also: AAOS Related Organizations).
AcAAP	N-acetylaminoantipyrine.
ACC	adenine-cytosine-cytosine codon for serine.
ACC	adenine-cytosine-cytosine codon for threonine.
ACC	American College of Cardiology.
ACC	anodal closure contraction.
ACCME	Accreditation Council for Continuing Medical Education.
Accom.	accommodation.
ACCP	American College Of Chest Physicians.
ACCx	anterior cingulate cortex.
ACD	absorbent cover dressing.
ACD	acid-citrate-dextrose.
ACD	allergic contact dermatitis.
ACD	anemia of chronic disease.
ACD	anterior cervical discectomy.
ACD	asymmetrical cortical degeneration syndromes.
ACD	Available Chemical Directory.
ACDF	adult children from dysfunctional family.
ACDF	anterior cervical discectomy and fusion.
ACDM	Association for Clinical Data Management
ACE	angiotensin converting enzyme.
ACEI	angiotensin-converting enzyme inhibitors.
ACF	anterior cervical fusion.
ACFAS	American College of Foot and Ankle Surgeons.
ACG	adenine-cytosine-guanine codon for threonine.
ACG	angiocardiography
ACh	acetylcholine.
AChR	acetylcholine receptor.
ACI	acute coronary insufficiency.
ACILS	American Center for International Labor Solidarity.
ACIP	Advisory Committee on Immunization Practices.
ACJ	acromioclavicular joint (also AC joint).
ACJT	acromioclavicular joint.
ACL	Achievement Check List.
ACL	acromegaloid features, cutis verticis gyrata, corneal leukoma (syndrome).
ACL	anterior clavicular line.
ACL	anterior cruciate ligament.
ACL	anterior cruciate ligament.
ACL	anticardiolipin (antibody).
ACl	aspiryl chloride.
ACLA	American Clinical Laboratory Association
ACLC	Assessment of Children's Language Comprehension.
ACLD	Association for Children with Learning Disabilities.
ACLF	adult congregate living facility.
ACLI	American Council on Life Insurance.
aCLL	atypical chronic lymphocytic leukemia.
ACLM	American College of Legal Medicine.
ACLPS	Academy of Clinical Laboratory Physicians and Scientists.
ACLR	anterior capsulolabral reconstruction.
ACLS	advanced cardiac life support.
AcLV	avian acute leukemia virus.
ACM	acetaminophen.
ACM	acute cerebrospinal meningitis.
ACM	Adriamycin, cyclophosphamide, methotrexate.
ACM	albumin-calcium-magnesium.
ACM	alveolar capillary membrane.
ACM	anticardiac myosin.
ACM	Arnold-Chiari malformation.
ACMA	American Occupational Medical Association.
ACMC	Association of Canadian Medical Colleges.
ACMD	associate chief medical director.
ACME	Advisory Council on Medical Education.
ACME	Automated Classification of Medical Entities.
ACMF	arachnoid cyst of the middle fossa.
ACMI	American College of Medical Informatics.
ACML	atypical chronic myeloid leukemia.
ACMP	alveolar-capillary membrane permeability.
ACMR	Advisory Committee on Medical Research.
ACMS	American Chinese Medical Society.
ACMSF	Advisory Committee on the Microbiological Safety of Food (UK).
ACMT	artificial circus movement tachycardia.
ACMV	assist-controlled mechanical ventilation.
ACN	acute conditioned neurosis ventilation.
ACN	Ambulatory Care Network ventilation.
ACN	American College of Neuropsychiatrists ventilation.
ACN	American College of Nutrition.
ACNM	American College of Nuclear Medicine Nutrition.
ACNM	American College of Nurse-Midwives.
ACNP	acute care nurse practitioner Midwives.
ACNP	American College of Nuclear Physicians.
ACO	acute coronary occlusion.
ACO	alert, cooperative, oriented.
ACO	anodal closure odor.
ACOA	adult children of alcoholics.
ACoA	anterior communicating artery.
ACOAs	collegiate adult children of alcoholics.
ACOEM	American College of Occupational and Environmental Medicine.
ACOEP	American College of Osteopathic Emergency Physicians.
ACOG	American College of Obstetricians and Gynecologists.
ACOHA	American College of Osteopathic Hospital Administrators.
ACO-HNS	American Council of Otolaryngology-Head and Neck Surgery.
ACOI	American College of Osteopathic Internists.
ACOM	American College of Occupational Medicine.
ACOM	anterior communicating (artery).
AComA	anterior communicating artery.
ACOMS	American College of Oral and Maxillofacial Surgeons.
ACOOG	American College of Osteopathic Obstetricians and Gynecologists.
ACOP	American College of Osteopathic Pediatricians.
ACOP	approved code of practice.
ACORDE	A Corsortium on Restorative Dentistry Education.
ACOS	American College of Osteopathic Surgeons
ACOS	American College of Osteopathic Surgeons.
ACOS	associate chief of staff.
ACOS/AC	associate chief of staff for ambulatory care.
Acous	acoustics, acoustic.
ACP	accessory conduction pathway.
ACP	acetone powder.
ACP	acid phosphatase.
AcP	acid phosphatase.
ACP	acyl carrier protein.
ACP	American College of Pathologists.
ACP	American College of Pharmacists.
ACP	American College of Physicians.
ACP	American College of Prosthodontists.
ACP	American College of Psychiatrists.
ACPA	American Cleft Palate Association.
ACPC	aminocyclopentane carboxylic (acid).
ACPE	American College of Physician Executives.
AC-PH	ac phos acid phosphatase.
ACPM	American College of Preventive Medicine.
ACPOC	Association of Children's Prosthetic-Orthotic Clinics (AAOS Specialty Societies).
ACPP	adrenocortical polypeptide.
ACPP	prostate-specific acid phosphatase.
ACPS	acrocephalopolysyndactyly.
ACR	abnormally contracting region.
ACR	absolute catabolic rate.
ACR	acriflavine.
Acr	acrylic.
ACR	adenomatosis of colon and rectum.
ACR	adjusted community rate.
ACR	ambulance call report.
ACR	American College of Radiology.
ACR	American College of Rheumatology.
ACR	anticonstipation regimen.
ACR	axillary count rate.
ACRF	ambulatory care research facility.
ACRI	Africa Crisis Response Initiative.
ACRM	American Congress on Rehabilitation Medicine.
ACRPI	Association of Clinical Research for the Pharmaceutical Industry.
ACS	acute cervical strain; acute cervical sprain.
ACS	acrocallosal syndrome.
ACS	acrocephalosyndactyly.
ACS	acute chest syndrome.
ACS	acute confusional state.
ACS	Alcon Closure System.
ACS	American Cancer Society.
ACS	American Chemical Society.
ACS	American College of Surgeons.
ACS	anodal closure sound.
ACS	antireticular cytotoxic serum.
ACS	aperture current setting.
ACS	Association of Clinical Scientists
ACSA	adenylate cyclase-stimulating activity.
ACSE	association control service element.
ACSF	artificial cerebrospinal fluid.
ACSM	American College of Sports Medicine.
ACSP	adenylate cyclase-stimulating protein.
ACSP	Australian College of Sports Physicians.
ACSV	aortocoronary saphenous vein.
ACSVBG	aortocoronary saphenous vein bypass graft.
AcT	acceleration time.
ACT	achievement through counseling and treatment.
ACT	actin.
ACT	actinomycin.
act	actinomycin.
ACT	activated clotting time.
ACT	active motion.
act	activity, active.
ACT	advanced coronary treatment.
ACT	anterocolic transposition.
ACT	antichymotrypsin.
ACT	anticoagulant therapy.
ACT	anxiety control training.
ACT	asthma care training.
ACT	atropine coma therapy.
ACTA	American Cardiology Technologists Association.
ACTA	automatic computerized transverse axial (scanning).
Act-C	actinomycin C.
Act-D	actinomycin D.
ACTe	anodal closure tetanus.
ACTG	AIDS Clinical Trial Group.
ACTH	adrenocorticotropic hormone, secreted by pituitary gland, which strongly stimulates the release of cortisol from adrenal cortex.
ACTH-LI	adrenocorticotropin-like immunoreactivity.
ACTHR	adrenocorticotropic hormone receptor.
ACTS	acute cervical trauma syndrome.
ACTZ	acetazolamide.
ACU	adenine-cytosine-uracil codon for threonine.
ACVB	aortocoronary venous bypass.
ACVD	acute cardiovascular disease.
ACVD	arteriosclerotic cardiovascular disease.
ad lib	at liberty, as desired.
AD	Action for Democracy.
AD	admission and discharge.
AD	admitting diagnosis.
AD	adult disease.
AD	alternating days.
AD	Alzheimer's disease.
AD	atopic dermatitis.
AD	auris dextra (right ear).
ADA	American Dental Association.
ADA	American Diabetes Association.
ADA	anterior descending artery.
ADADS	Alcohol and Drug Abuse Data System.
ADAS-Cog	Alzheimer's Disease Assessment Scale-Cognitive Subscale.
ADASP	Association of Directors of Anatomic and Surgical Pathology.
ADC	AIDS dementia complex.
ADCC	antibody-dependent cell-mediated cytotoxicity.
ADD	addiction.
ADD	adduct; adduction.
ADD	attention deficit disorder.
ADD	average daily dose.
ADEA	American Dental Education Association.
ADEA	Association for the Development of Education in Africa.
ADEM	acute disseminated encephalomyelitis/encephalopathy.
adeno-Ca	adenocarcinoma.
ADF	acid detergent fiber.
ADF	actin depolymerizing factor.
ADG	average daily gain.
ADH	antidiuretic hormone, called also vasopressin.
ADH	atypical ductal hyperplasia.
ADHD	attention deficit hyperactivity disorder.
ADI	acceptable daily intake.
ADJ	adjacent.
ADJ	adjoining.
ADJ	adjunct.
ADJ	adjust.
ADJ	adjuvant chemotherapy.
ADL	activities of daily living.
ADM scale	Acceptance of Disability Scale Modified.
ADM	abductor digiti minimi.
ADM	Academy of Dental Materials.
ADM	acellular dermal matrix.
ADM	acetone dry mass.
ADM	acetone-dissolution method.
ADM	acquired dermal melanocytosis.
ADM	action description resolution.
ADM	adamantane.
ADM	adaptive decision making.
ADM	adenomyomatosis.
ADM	adhesion molecules.
adm	administered.
ADM	administration.
ADM	administrative medicine.
ADM	admission/admitted.
ADM	adrenal medulla.
ADM	adrenodemedullated.
ADM	adrenomedullin.
ADM	adriamycin.
ADM	adult onset diabetes mellitus.
ADM	advancement of the mandible.
ADM	Aide au Diagnostic Medical (database).
adm	air dry mass.
ADM	Alcohol, Drug Abuse and Mental Health (grant of US Department of Health and Human Services).
ADM	alcohol, drug, and mental disorders.
ADM	allogeneic dermal matrix.
ADM	aminopyrine-N-demethylase.
ADM	amyopathic dermatomyositis.
ADM	angular dependence model
ADM	anisodamine.
ADM	anterior deep masseter.
ADM	antroduodenal manometry.
ADM	aperture-defined microvolume.
ADM	appraisal-disruption model.
ADM	arginine-deficient medium.
ADM	armadillo-derived mycobacteria.
ADM	aspergillus differential medium.
ADM	atypical diabetes mellitus.
ADM	auditory dominance model.
ADM	average distance map.
ADP	abductor pollicis.
ADP	adenosine diphosphate.
ADP	Agricultural Development Program.
ADR	adverse drug reaction.
Adria	Adriamycin, trade name for doxorubicin.
ADS	anterior dynamized system (produced by: Abbott Labs).
ADT	admission-discharge-transfer.
ADV	advised.
ADV	arterial deep venous.
ADV	Aujeszky's Disease Virus.
AE	above the elbow.
AE	active and equal.
AE	adverse event.
AEA	Asociación Española de Artroscopia (Spanish Arthroscopy Association - only Spanish).
AEA	auricular electroacupuncture.
AEB	as evidenced by.
AEC	5-amino 9 ethyl carbazol.
AED	antiepileptic drug.
AED	automated external defibrillator.
AEEC	attaching and effacing Escherichia coli.
AEH	atypical endometrial hyperplasia.
AEI	acetyleethyleneimine.
AER	auditory evoked response.
AER	average evoked response.
AERC	African Economic Research Consortium.
AET	2-aminoethylisothiouronium bromide hydrobromide.
AF	adult female.
AF	amniotic fluid.
AF	aortic flow.
AF	atrial fibrillation.
AF	atrial flutter.
AFB	acid fast bacillus.
AFB1	aflatoxin B1.
AFB2a	aflatoxin B2a.
AFC	amniotic fluid cortisol.
AFC/MSC	ratio of amniotic fluid cortisol and maternal serum cortisol.
aFGF	acidic fibroblast growth factor.
Afib	atrial fibrillation.
AFIP	Armed Forces Institute of Pathology.
AFL	aflatoxicol.
AFL	artificial limb.
AFL	atrial flutter.
AFLM1	aflatoxicol M1.
AFLP	acute fatty liver of pregnancy.
AFM	atomic force microscope.
AFNOR	French Standardisation Institut.
AFO	ankle-foot orthoses.
AFP	acute flaccid paralysis.
AFP	alpha-fetoprotein (expressed by germ cell tumors and other cancers).
AFSI	Africa Food Security Initiative .
AFTR	atrophy, fasciculation, tremor, rigidity.
AFX	atypical fibroxanthoma.
AG	anion gap.
AGA	adenine-guanine-adenine codon for arginine.
AGA	appropriate-for-gestational age.
AGCT	adult granulosa cell tumour.
AGF	angle of greatest flexion.
AGG	aggravation.
AGG	adenine-guanine-guanine codon for arginine.
AGI	Academy for Guided Imagery.
AGL	acute granulocytic leukemia.
AGN	acute glomerulonephritis.
AGTT	abnormal glucose tolerance test.
AGU	adenine-guanine-uracil codon for serine.
AGUS	atypical glands of unknown significance.
AH	abdominal hysterectomy.
AH	arterial hypertension.
AHA	American Heart Association.
AHA	American Hospital Association.
AHB	alpha-hydroxybutyric acid.
AHC	academic health care.
AHC	academic health center.
AHC	acute hemorrhagic conjunctivitis.
AHC	acute hemorrhagic cystitis.
AHC	amygdalohippocampal complexes.
AHC	antihemophilic factor C.
AHCA	Agency for Health Care Administration.
AHCA	American Health Care Association.
AHCD	acquired hepatocellular degeneration.
AHCPR	Agency for Health Care Policy and Research.
AHCy	adenosyl homocysteine.
AHD	acquired hepatocerebral degeneration.
AHD	acute heart disease.
AHD	antihyaluronidase.
AHD	antihypertensive drug.
AHD	arterio-hepatic dysplasia.
AHD	atherosclerotic heart disease.
AHD	autoimmune hemolytic disease.
AHDMS	automated hospital data management system.
AHDP	azacycloheptane diphosphonate.
AHDS	Allan-Herndon-Dudley syndrome.
AHE	acute hazardous events (database).
AHE	acute hemorrhagic encephalomyelitis.
AHEA	area health education activity.
AHEC	area health education center.
AHES	artificial heart energy system.
AHF	acute heart failure.
AHF	American Health Foundation.
AHF	American Hepatic Foundation.
AHF	American Hospital Formulary.
AHF	antihemophilic factor.
AHF	Argentinian hemorrhagic fever.
AHF	Associated Health Foundation.
AHFS	American Hospital Formulary Service.
AHG	aggregated human globulin.
AHG	antihemophilic globulin factor.
AHG	antihemophilic globulin.
AHG	antihuman globulin.
AHGG	aggregated human gammaglobulin.
AHGG	antihuman gammaglobulin.
AHGS	acute herpetic gingival stomatitis.
AHH	alpha-hydrazine analog of histidine.
AHH	anosmia and hypogonadotropic hypogonadism (syndrome).
AHH	arylhydrocarbon hydroxylase.
AHH	Association for Holistic Health.
AHI	active hostility index.
AHI	Animal Health Institute.
AHI	apnea-plus-hypopnea index.
AHIMA	American Health Information Management Association.
AHIMA	American Health Information Management Association.
AHIP	assisted health insurance plan.
AHIS	automated hospital information system.
AHJ	artificial hip joint.
AHL	acquired hypertrichosis lanuginosa.
AHL	acute hemorrhagic leukoencephalitis.
AHL	apparent half-life.
AHLE	acute hemorrhagic leukoencephalitis.
AHLG	antihuman lymphocyte globulin.
AHLS	antihuman lymphocyte serum.
AHM	Allied health manpower.
AHM	ambulatory Holter monitor.
AHMA	American Holistic Medicine Association.
AHMA	antiheart muscle autoantibody.
AHMC	Association of Hospital Management Committees.
AHN	Army Head Nurse.
AHN	assistant head nurse.
AHNMD	associated clonal hematopoietic non-mast cell lineage disorder.
AHO	Albright hereditary osteodystrophy.
AHP	accountable health plan or partnership.
AHP	acute hemorrhagic pancreatitis.
AHP	after hyperpolarization.
AHP	air at high pressure.
AHP	analytic hierarchy process.
AHP	approved health plan.
AHP	Assistant House Physician.
AHPA	American Health Planning Association.
AHPO	anterior hypothalamic preoptic (area).
AHR	antihyaluronidase reaction.
AHR	Association for Health Records.
AHR	atrial heart rate.
AHRA	American Hospital Radiology Administration.
AHRF	acute hypoxemic respiratory failure.
AHRF	American Hearing Research Foundation.
AHRQ	Agency for Healthcare Research and Quality.
AHS	Academy of Health Sciences.
AHS	African horse sickness.
AHS	alveolar hypoventilation syndrome.
AHS	American Hearing Society.
AHS	American Hospital Society.
AHS	area health service.
AHS	assistant house surgeon.
AHSA	American Health Security Act.
AHSCT	autologous hematopoietic stem cell transplantation.
AHSDF	area health service development fund.
AHSG	alpha-2HS-glycoprotein.
AHSN	Assembly of Hospital Schools of Nursing.
AHSP	AIDS Health Services Program (of the Robert Wood Johnson Foundation).
AHSR	Association for Health Services Research.
AHT	aggregation half time.
AHT	antihyaluronidase titer.
AHT	arterial hypertension.
AHT	augmented histamine test.
AHT	autogenous hamster tumor.
AHTG	antihuman thymocyte globulin.
AHTP	antihuman thymocyte plasma.
AHTS	antihuman thymus serum.
AHU	acute hemolytic uremic (syndrome).
AHU	arginine, hypoxanthine, and uracil.
AHuG	aggregated human IgG.
AHV	avian herpes virus.
AI	accidental injury.
AI	accidentally incurred.
aI	active ingredient.
AI	adiposity index.
AI	aggregation index.
AI	allergy and immunology.
AI	amylogenesis imperfecta.
AI	anaphylatoxin inactivator.
AI	angiogenesis inhibitor.
AI	angiotensin I.
AI	anxiety index.
AI	aortic incompetence.
AI	aortic insufficiency.
AI	apical impulse.
AI	articulation index.
AI	artificial insemination.
AI	artificial intelligence.
AI	atherogenic index.
AI	atrial insufficiency.
AI	autoimmune, autoimmunity.
AI	axio-incisal.
AI	first meiotic anaphase..
AI/COAG	artificial intelligence hemostasis consultant system.
AIA	allylisopropylacetamide.
AIA	amylase inhibitor activity.
AIA	anti-immunoglobulin antibody.
AIA	anti-insulin antibody.
AIA	aspirin-induced asthma.
AIA	automated image analysis.
AIB	aminoisobutyrate.
AIB	avian infectious bronchitis.
AIBA	aminoisobutyric acid.
AIBS	American Institute of Biological Sciences.
AIC	Akaike's information criterion (a goodness-of-fit measure).
AIC	aminoimidazole carboxamide.
AIC	Association des Infirmières Canadiennes.
A-IC	average integrated concentration.
AICA	anterior inferior cerebellar artery.
AICA	anterior inferior communicating artery.
AI-CAH	autoimmune-type chronic active hepatitis.
AICAR	aminoimidazole carboxamide ribonucleotide.
AICD	automatic implantable cardioverter defibrillator.
AICE	angiotensin I converting enzyme.
AICF	autoimmune complement fixation.
AID	acquired immunodeficiency disease.
AID	acute infectious disease.
AID	acute ionization detector.
AID	Agency for International Development.
AID	argon ionization detector.
AID	artificial insemination by donor.
AID	autoimmune deficiency.
AID	autoimmune disease.
AID	automatic implantable defibrillator.
AID	average interocular difference.
AIDP	acute inflammatory demyelinating polyradiculoneuropathy.
AIDS	acquired immunodeficiency syndrome.
AIDSDRUGS	clinical trials of acquired immunodeficiency drugs.
AIDS-KS	acquired immune deficiency syndrome with Kaposi's sarcoma.
AIDSLINE	on-line information on acquired immunodeficiency syndrome.
AIDS-OI	AIDS with opportunistic infections.
AIDSTRIALS	clinical trials of acquired immunodeficiency syndrome drugs.
AIIS	anterior inferior iliac spine.
AIL	angioimmunoblastic lymphadenopathy.
AIMBE	American Institute for Medical and Biological Engineering.
AIN	anterior interosseous nerve.
Aind	indicative dosage.
AIOD	Association Internationale pour l'Ostéosynthèse Dynamique.
AIOM	Italian Association for Medical Oncology.
AION	anterior ischemic optic neuropathy.
AIOSM	American Institute of Orthopaedic and Sports Medicine.
AIP	acute interstitial pneumonia (Hamman-Rich disease).
AIRO	Associazione Italiana di Radioterapia Oncologica.
AIS	adenocarcinoma in situ.
AIS	adolescent idiopathic scoliosis.
AIT	acute intensive treatment.
AJ	ankle jerk.
AJAO	American Juvenile Arthritis Organization.
AJCC	American Joint Committee on Cancer.
AJKS	American Journal of Knee Surgery.
AJNR	American Journal of Neuroradiology.
AJO	American Journal of Orthopaedics.
AJR	abdominojugular reflux maneuver.
AJR	accelerated junctional rhythm.
AJR	albumin-deficient and jaundiced strain of rats.
AK	above knee.
AK	above the knee (amputation).
AKA	above knee amputation.
AKA	also known as.
AKS	American Knee Society.
AL	idiopathic (primary) amyloidosis.
AL	left ear.
Al	porous alumni.
Ala	alanine.
ALAT	alanine aminotransferase / alanine transaminase.
ALB	albendazole.
ALC	anaplastic large cell.
ALC	approximate lethal concentration.
ALD	alcoholic liver disease.
ALIP	atypical localization of immature precursors.
alk phos	alkaline phosphatase.
ALK	anaplastic lymphoma kinase.
ALK	automated lamellar keratoplasty.
ALL	acute lymphoblastic leukemia.
ALL	allergy.
AlloSCT	allogeneic stem-cell transplantation.
ALMI	anterior lateral myocardial infarction.
ALP	alkaline phosphatase.
alpha 2,6-ST	alpha 2,6 sialyltransferase.
alpha-MPT	alpha-methyl-p-tyrosine.
alpha-T7	transgenic line of mice.
ALRI	antero-lateral rotatory instability.
ALS	acute lumbar strain.
ALS	advanced life support.
ALS	amyotrophic lateral sclerosis.
ALS	anterolateral sclerosis.
alt hor	alternate hours/every other hour.
ALT	alanine aminotransferase (formerly SGPT).
ALT	alternate.
ALT	altitude.
Alt	aluminum tartrate.
ALT	argon laser trabeculoplasty.
ALT	autolymphocyte therapy.
ALT	avian laryngotracheitis
ALTB	acute laryngotracheobronchitis.
ALTE	acute life-threatening event.
ALTEE	acetyl-L-tyrosine ethyl ester.
ALTS	acute lumbar trauma syndrome.
ALVF	acute left ventricular failure.
AM	adult male.
AM	aerospace medicine.
AM	alveolar macrophages.
AM	anteromedial.
AM	before noon.
AMA	against medical advice.
AMA	American Medical Association.
AMAN	acute motor axonal neuropathy.
AMB	ambulate; ambulatory.
AMD	acid maltase deficiency.
AMD	acromandibular dysplasia.
AMD	actinomycyn d.
AMD	adrenomyelodystrophy.
AMD	age-related macular degeneration.
AMD	air monitoring device.
AMD	aleutian mink disease.
AMD	alpha-methyldopa.
AMD	amantadine.
AMD	Association for Macular Diseases.
AMD	axiomesiodistal.
AMD	s-adenosylmethionine decarboxylase.
AMDF	American Macular Degeneration Foundation.
AMG	acceleromyography.
AMG	?2-macroglobulin.
AMI	acute myocardial infarction.
AMIA	American Medical Informatics Association.
AML	acute myeloblastic leukemia.
AMM&M	agnogenic myeloid metaplasia with myelofibrosis.
AMM	agnogenic myeloid metaplasia.
amp	ampere.
AMP	amphetamine.
AMP	amputation.
AMS	American Medical Systems Inc..
AMS	Amsterdam.
AMS	aseptic meningitis syndrome.
AMSAN	acute motor sensory axonal neuropathy.
AMSSM	American Medical Society for Sports Medicine.
amt	amount.
AMV	alfalfa mosaic virus.
AMV	anterior medullary velum.
AMV	apical membrane vesicles (about lung).
AMV-RT	avian myeloblastosis virus reverse transcriptase.
AMY2	alpha-amylase 2.
AN69-S	Biospal.
ANA	anesthesia.
ANA	antinuclear antibody test (see also FANA).
ANAL	analgesic.
ANC	absolute neutrophil count.
ANCA	antineutrophil cytoplasmic antibodies.
AND	algoneurodystrophy.
AND	anterior nasal discharge.
ANED	alive no evidence of disease.
ANES	anesthesia.
ANG	angle.
ANHE	acute necrotizing hemorrhagic encephalopathy.
ANI	acute nerve irritation.
ANLL	acute non-lymphocytic leukemia.
ANO	amiodarone neuropathy of the optic nerve.
ANOVA	analysis of variance.
ANP	atrial natriuretic peptide.
ANPs	advanced nurse practitioners'.
ANRF	Arthritis National Research Foundation.
ANRI	acute nerve root irritation.
ANS	autonomic nervous system.
ANSI	American National Standards Institute.
ANT	anterior.
anti-OJ	anti-isoleucyl-tRNA synthetase.
ANX	anxiety.
AO ASIF	AO (Arbeitsgemeinschaft fuer Osteosynthesefragen) Association of the Study of Internal Fixation.
AO	angle of.
AO	aorta.
AO	Arbeitsgemeinschaft fuer Osteosynthesefragen.
AO	inbred strains of rats [AO(RT1u/AgB2)].
AOA	American Orthopaedic Association (also: AAOS Related Organizations).
AOA	American Osteopathic Association.
AOA	Asian Orthopaedic Association.
AOA	Australian Orthopaedic Association.
AOAC	Association of Official Analytical Chemist.
AOB	Abteilung für Orthopädische Biomechanik (Orthopaedic Biomechanics Division).
AOB	alcohol on breath.
AOD	arteriosclerotic occlusive disease.
AODA	alcohol and other drugs of abuse.
AODM	adult onset diabetes mellitus.
AOFAS	American Orthopaedic Foot and Ankle Society (also: AAOS Related Organizations).
AOI	AO (Arbeitsgemeinschaft fuer Osteosynthesefragen) International.
AOLF	Association des Orthopédistes de Langue Française.
AOM	acute otitis media.
AOPA	American Orthotic and Prosthetic Association.
AOQ	l'Association d'Orthopédie du Québec.
AORFA	American Orthopaedic Rugby Football Association.
AORN	Association of Perioperative Registered Nurses.
AOS	Academic Orthopaedic Society (also: AAOS Specialty Societies).
AOS	Alaska Orthopaedic Society.
AOS	Arizona Orthopaedic Society.
AOSSM	American Orthopaedic Society for Sports Medicine (Journal) (also: AAOS Related Organizations).
AOx4	alert and oriented in 4 questions asked in evaluation of metal status.
AP & L	anteroposterior and lateral.
AP	(Lat. ante partum) before delivery.
AP	access permit.
AP	accessory pathway.
AP	accounts payable.
AP	acid phosphatase.
AP	acinar parenchyma.
AP	action potential.
AP	active pepsin.
AP	acute pancreatitis.
Ap	acute phase.
AP	acute pneumonia.
AP	acute proliferative.
AP	adenomatous polyposis.
AP	adolescent psychiatry.
AP	aerosol pentamidine.
AP	after parturition.
AP	alkaline phosphatase.
AP	alum precipitated.
AP	aminopeptidase.
Ap	aminopurine.
AP	amyloid p-component.
AP	angina pectoris.
AP	anterior pituitary.
AP	anteroposterior (view in X-rays).
AP	antidromic potential.
Ap	antipyrine.
AP	antral peristalsis.
AP	aortic pressure.
AP	aortopulmonary.
Ap	apex.
AP	apical pulse.
AP	apothecary.
AP	appendectomy.
AP	appendicitis; appendix.
AP	apurinic acid.
AP	area postrema.
AP	arithmetic progression.
AP	arterial pressure.
AP	artificial pneumothorax.
AP	aspiration pneumonia.
Ap	assessment and plans.
AP	association period.
AP	atherosclerotic plaque.
AP	atrial pacing.
AP	atrioventricular pathway.
ap	attachment point.
AP	Australian pharmacist.
AP	axiopulpal.
ap	before dinner.
AP	BNP, brain natriuretic peptide.
APA	Abrus precatorius agglutinin.
APA	American Paralysis Association.
APA	American Psychiatric Association.
APAAP	alkaline phosphatase anti-alkaline phosphatase.
APACHE	acral pseudolymphomatous angiokeratoma of childhood.
APAP	acetaminophen (paracetamol).
APB	abductor pollicis brevis (also ABPB).
APB	atrial premature beat.
APC	activated protein C.
APC	allophycocyanin.
APC	Ambulatory Patient Classification.
APC	anterior polar cataract.
APC	antero-posterior compression.
APC	antigen presenting cells.
APC	Argon Plasma Coagulation.
APC	aspirin, phenacetin, caffeine.
APCI	atmosphere pressure chemical ionization.
APF	assigned protection factor.
APH	anterior pituitary hormone.
APH	aphasia.
APHIS	USDA's Animal and Plant Health Inspection Service.
API	Association for Pathology Informatics.
APL	abductor pollicis longus (also ABPL).
APLAR	Asian Pacific League of Association for Rheumatology.
APLS	advanced pediatric life support.
APM	apomorphine.
APMA	American Podiatric Medical Association.
ApMV	apple mosaic virus.
APP	Alzheimer amyloid precursor protein.
APP	appears.
APP	appendix.
APP	appointment.
APP	approximate.
ApPC	anthrylvinyl-labeled phosphatidylcholine.
APPC	aorto-pericardial pouch conduit.
APPC	apalcillin.
APPC	apoptotic cells.
APPc	cytoplasmic tail of the amyloid precursor protein.
APPC	knee arthroplasty with polyethylene patellar components.
APPC	p-aminophenylphosphorylcholine.
APTA	American Physical Therapy Association.
APTT	automated partial thromboplastin time.
APUD	amine precursor uptake and decarboxylation.
APVOD	arteriosclerotic peripheral vascular occlusive disease.
APX	ascorbate peroxidase.
AQ, aq.	water.
AQL	acceptance quality level.
AR	active resistance.
AR	admitting room.
AR	apical rate.
AR	artificial respiration.
AR	assessment report.
AR	assisted respiration.
AR	at risk.
ARA-C	cytarabine.
ARC	AIDS related complex.
ARD	acute respiratory disease.
ARD	atheroembolic renal disease.
ARDS	acute/adult respiratory distress syndrome.
ARE	active-resistance exercise.
ARF	acute renal failure.
ARF	acute respiratory failure.
ARF	acute rheumatic fever.
Arg	arginine.
ARI	anxiety reaction, intense.
ARIC	Atherosclerosis Risk in Communities.
ARM	anxiety reaction, mild.
ARNP	Advanced Registered Nurse Practitioner.
AROM	active range of motion.
AROM	artificial rupture of membranes.
ARP	American Registry of Pathology.
ARP	American Registry of Pathology.
ARRT	American Registry of Radiologic Technologists.
ART	absolute retention time (chromatography).
ART	Achilles' tendon reflex test.
ART	artery.
ART	articulation.
ART	artificial.
ARTH	arthritic.
ARVD	arrythmogenic right ventricular dysplasia.
AS	ankylosing spondylitis.
as to	as tolerated.
AS	alpha-synuclein.
AS	anal sphincter.
AS	aortic stenosis.
AS	arteriosclerosis.
AS	auris sinistra (left ear).
ASA	acetylsalicylic acid (aspirin).
ASA	American Society of Anesthesiologists.
ASAMI	Association for the Study and Application of the Ilizarov Method.
ASAP	as soon as possible.
ASB	American Society of Biomechanics.
ASBME	Associated Students of Biomedical Engineering.
ASBMR	Austrian Society for Bone and Mineral Research (EFFO Member Society).
ASC	arteriosclerosis.
ASC	ascending.
ASCAD	arteriosclerotic coronary artery disease.
ASCO	American Society of Clinical Oncology.
ASCUS	atypical squamous cells of unknown significance.
ASCVD	arteriosclerotic cardiovascular disease.
ASD	atrial septal defect.
ASD	autosensitization spongiotic dermatitis.
ASDP	American Society of Dermatopathology.
ASES	American Shoulder and Elbow Surgeons (also: AAOS Specialty Societies).
ASF	African Swine Fever.
ASF	anterior spinal fusion.
ASH	American Society of Hematology.
ASH	asymmetrical septal hypertrophy.
ASHD	arteriosclerotic heart disease.
ASHD	atherosclerotic heart disease.
ASHNR	American Society of Head and Neck Radiology.
ASI	specific immunotherapy.
ASIA	American Spinal Injury Association (AAOS Related Organizations).
ASIC	application specific integrated circuit.
ASIS	anterior superior iliac spine.
ASM	aggressive systemic mastocytosis.
ASM	American Society for Microbiology.
ASMI	American Sports Medicine Institute.
Asn	asparagine.
ASNR	American Society of Neuroradiology.
ASO	Amplatzer septal occluder.
ASO	antisense oligonucleotides.
ASO	antistreptolysin-O.
ASO	arteriosclerosis obliterans.
ASOPA	American Society of Orthopaedic Physician's Assistants (also: AAOS Specialty Societies).
ASOS	Australian Society of Orthopaedic Surgeons.
Asp	aspartic acid.
ASPC	aspoxicillin.
ASPNR	American Society of Pediatric Neuroradiology.
ASPRS	American Society of Plastic and Reconstructive Surgeons.
ASPVD	arteriosclerotic peripheral vascular disease
ASR	age standardized rate (incidence).
ASRT	American Society of Radiologic Technologists.
Aß	amyloid beta-peptides.
ASS	anterior superior spine.
ASSH	American Society for Surgery of the Hand (also: AAOS Related Organizations).
assist.	assistive.
ASSR	American Society of Spine Radiology.
ASSV	apple scar skin viroid.
AST	all subjects treated.
AST	alternate-site-testing.
AST	antimicrobial susceptibility testing.
AST	aspartate aminotransferase (formerly SGOT).
AST	Association of Surgical Technologists.
AST	astigmatism.
Astigm.	astigmatism.
ASTM	american standard test method.
ASTRO	American Society for Therapeutic Radiology and Oncology.
ASU	ambulatory surgery unit.
at bed time	hs.
AT	achilles tendon.
AT	anterior tibial.
AT	athletic trainer.
AT	atlas.
at	vol atomic volume.
at	wt atomic weight.
AT/NC	atraumatic, normocephalic.
ATF	amino-terminal fragment.
ATL	adult T-cell leukemia/lymphoma.
ATLL	adult T-cell leukemia/lymphoma.
ATLS	advanced trauma life support (training course).
ATN	acute tubular necrosis
ATP	attending physician.
ATP	autoimmune thrombocytopenic purpura.
ATPS	ambient temperature and pressure, saturated.
Atr fib	atrial fibrillation.
ATR	Achilles tendon reflex.
ATR	alpha-thalassemia-mental retardation (syndrome).
ATR	atracurium.
ATR	atrazine.
atr	atrophy.
ATR	atrophy.
ATRA	all-trans-retinoic acid (regimen used to treat acute promyelocytic leukemia).
ATRIP	Africa Trade and Investment Program.
ATRX, ATR-X	X-linked alpha-thalassemia mental retardation (syndrome).
ATS	Achard-Thiers syndrome.
ATS	acid test solution.
ATS	alpha-D-tocopherol acid succinate.
ATS	American Thoracic Society.
ATS	American Trauma Society.
ATS	American Trudeau Society.
ATS	antirat thymocyte serum.
ATS	antitetanus serum.
ATS	antithymocyte serum.
ATS	anxiety tension state.
ATS	arteriosclerosis.
ATSDR	Agency for Toxic Substances and Disease Registry.
ATT	arginine tolerance test.
ATT	aspirin tolerance time.
att	attending.
ATV	Abelson virus transformed.
ATV	avian tumor virus.
ATx	adult thymectomy.
atyp	atypical.
ATZ	atypical transformation zone.
Au Ag	Australia antigen.
AU	(auris unitas) both ears.
AU	according to custom (Lat.ad usum).
AU	allergenic unit.
AU	Angstrom unit.
AU	antitoxin unit.
AU	arbitrary unit.
Au	Australia (antigen).
AU	Australia antigen.
Au	authorization.
AU	azauridine.
Au	gold (Lat.Aurum).
AUA	adenine-uracil-adenine codon for isoleucine.
AUA	American Urological Association.
AUA	asymptomatic urinary abnormalities.
AUB	abnormal uterine bleeding.
AUC	adenine-uracil-cytosine codon for isoleucine.
AUC	area under the curve.
AUD	arthritis of unknown diagnosis.
aud	auditory.
AUDIT	alcohol use disorders identification test.
aud-vis	audiovisual.
AUG	acute ulcerative gingivitis.
AUG	adenine-uracil-guanine codon for methionine.
AUGH	acute upper gastrointestinal hemorrhage.
AuHAA	Australia hepatitis-associated antigen.
AUI	Alcohol Use Inventory.
AUL	acute undifferentiated leukemia.
AUMC	area under the "moment" curve.
AUO	amyloid of unknown origin.
AuP	Australian antigen protein.
AUPHA	Association of University Programs in Health Administration.
aur	auric, auricle, auricular.
AUS	acute urethral syndrome.
AUs	alcohol users.
aus, ausc	auscultation.
AuS	Australia serum hepatitis.
Ausc.	auscultation.
AuSH	Australia serum hepatitis.
Auto-PEEP	self-controlled positive end-expiratory pressure.
AUU	adenine-uracil-uracil codon for isoleucine.
AUV	anterior urethral valve.
AUVIB	autotransfusion of UV-irradiated blood.
aux	auxiliary.
aV	abvolt.
AV	Adriamycin and vincristine.
AV	air velocity.
av	air velocity.
AV	allergic vasculitis.
AV	anteroventral.
AV	anteversion.
AV	anticipatory vomiting.
AV	antivirin.
AV	aortic valve.
AV	arteriovenous.
A-V	arteriovenous.
AV	artificial ventilation.
AV	assisted ventilation.
AV	atrioventricular.
A-V	atrioventricular.
AV	audio-visual.
AV	augmented vector.
AV	average.
av	average.
Av	average.
AV	aviation medicine.
AV	avoirdupois.
Av	avoirdupois.
av	avulsion.
AV	avulsion.
AV/AF	anteverted, anteflexed.
Av3V	anteroventral third ventricle.
AVA	activity vector analysis.
AVA	antiviral antibody.
AVA	aortic valve area.
AVA	aortic valve atresia.
AVA	arteriovenous anastomosis.
AVB	atrioventricular block.
AVC	aberrant ventricular conduction.
AVC	Academy of Veterinary Cardiology.
AVC	aortic valve closure.
AVC	Association of Vitamin Chemists.
AVC	associative visual cortex.
AVC	associative visual cortex.
AVC	atrioventricular canal.
AVC	automatic volume control.
AVCN	anteroventral cochlear nucleus.
AVCS	atrioventricular conduction system.
AVCx	atrioventricular circumflex branch.
AVD	aortic valvular disease.
AVD	apparent volume of distribution.
AVD	Army Veterinary Department.
AVD	atrioventricular dissociation.
AVDO2	arteriovenous oxygen saturation difference.
AVDO2B	arteriovenous oxygen saturation difference, basal.
AVDP	average diastolic pressure.
avdp	avoirdupois.
AVE	aortic valve echocardiogram.
ave, aver	average.
AVF	antiviral factor.
AVF	arteriovenous fistula.
aVF	automated volt foot.
aVF	unipolar limb lead on the left leg in electrocardiography.
AVG	ambulatory visit group.
avg	average.
AVG	average.
AVH	acute viral hepatitis.
AVHD	acquired valvular heart disease.
AVHS	acquired valvular heart syndrome.
AVI	air velocity index.
AVI	Association of Veterinary Inspectors.
AVJ	atrioventricular junction.
AVJR	atrioventricular junction rhythm.
AVJRe	atrioventricular junctional reentrant.
aVL	automated volt left.
aVL	unipolar limb lead on the left arm in electrocardiography.
AVLINE	Audiovisuals On-Line (database).
AVM	arteriovenous malformations.
AVM	atrio-ventricular malformations.
AVM	aviation medicine.
AVMA	American Veterinary Medical Association.
AVN	acute vasomotor nephropathy.
AVN	atrioventricular nodal (conduction).
AVN	atrioventricular node.
AVN	avascular necrosis (MRI evaluation).
AVND	atrioventricular node dysfunction.
AVNFH	avascular necrosis of the femoral head.
AVNFRP	atrioventricular node functional refractory period.
AVNR	atrioventricular nodal reentry.
AVNRT	atrioventricular node reentry tachycardia.
AVO	aortic valve opening.
AVO	aortic valve orifice.
AVO	atrioventricular opening.
AVO2	arteriovenous oxygen ratio.
AVP	abnormal vasopressin.
AVP	actinomycin-vincristine-Platinol.
AVP	ambulatory venous pressure.
AVP	antiviral protein.
AVP	aqueous vasopressin.
AVP	arginine-vasopressin.
AVP	arteriovenous passage time.
AVP	vasopressin.
AVPU	alert, verbal, painful, unresponsive (neurologic test).
AVR	accelerated ventricular rhythm.
AVR	antiviral regulator.
AVR	aortic valve replacement.
aVR	automated volt right.
aVR	unipolar limb lead on the right arm in electrocardiography.
AVRI	acute viral respiratory infection.
AVRP	atrioventricular refractory period.
AVRR	antiviral repressor regulator.
AVRT	atrioventricular reentrant tachycardia; atrioventricular reciprocating tachycardia.
AVS	aortic valve stenosis.
AVS	arteriovenous shunt.
AVS	auditory vocal sequencing.
AVSD	atrioventricular septal defect.
AVSV	aortic valve stroke volume.
AVT	Allen vision test.
AVT	arginine vasotocin.
AVT	Aviation Medicine Technician.
AVZ	avascular zone.
AW	able to work.
AW	above waist.
AW	abrupt withdrawal.
aw	airway.
AW	alcohol withdrawal.
AW	alive and well.
AW	alveolar wall.
AW	anterior wall.
AW	atomic warfare.
AW	atomic weight.
aw	water activity.
AWA	animal waste ashes.
AWA	as well as.
AWAR	anterior wall of aortic root.
AWBM	alveolar wall basement membrane.
AW-GC	apatite and wollastonite containing glass-ceramic.
AX	axial: axillary.
AZT	azidothymidine (zidovudine).
AZUR	6-azauridine.
B (620 abbreviations)
B&C	biopsy and curettage.
B	B-cells.
B	black.
B	born.
B	fever, sweats, or weight loss ("B" symptoms in Hodgkin lymphoma).
b/c	benefit/cost (ratio).
B19-PRCA	pure red cell aplasia caused by parvovirus B19.
Ba, BA	barium.
BA	blood alcohol.
BA	bone age.
BA	brachial artery.
BA	bronchial asthma.
BAB	Babinski's sign
BAC	blood alcohol concentration
BACR	British Association for Cancer Research.
Bact.	bacteriologist; bacteriology
BaE	barium enema
BAER	brain stem auditory evoked response.
BAIJP	Bovie-assisted uvulopalatoplasty.
BAL	bronchoalveolar lavage.
BALF	broncho-alveolar lavage fluid.
B-ALL	B-cell acute lymphoblastic leukemia.
bals	balsam.
BALT	bronchus-associated lymphoid tissue.
BAM	bamifylline.
BaM	barium meal.
BAM	basilar artery migraine.
BAM	bilateral augmentation mammoplasty.
BAM	brachial artery mean (pressure).
BAME	benzoylarginine methyl ester.
BamHI	restriction enzyme from Bacillus amyloliquefaciens H.
BAN	British Approved Name.
BAN	British Association of Neurologists.
BANS	Back, posterior upper Arm, posterior Neck, Scalp; prognostically high-risk sites for malignant melanoma.
BAO	basal acid output.
BAO	brachial artery output.
BAO-MAO	basal acid output to maximal acid output (ratio).
BAP	bacterial alkaline phosphatase.
BAP	Behavior Activity Profile.
BAP	beta-amyloid peptide.
BAP	blood-agar plate.
BAP	bovine albumin in phosphate buffer.
BAP	brachial artery pressure.
BAPhysMed	British Association Physical Medicine.
BAPI	barley alkaline protease inhibitor.
BAPN	beta-aminoproprionitrile fumarate.
BAPO	Belgian Association of Pediatric Orthopaedics.
BAPP	beta amyloid precursor protein.
BAPS	biomechanical ankle platform system.
BAPS	bovine albumin phosphate saline.
BAPS	British Association of Paediatric Surgeons.
BAPS	British Association of Plastic Surgeons.
BAPT	British Association of Physical Training.
BAPTA	l,2-bis (aminophenoxy) ethane- N,N,N,N'-tetraacetic acid.
BAPV	bovine alimentary papilloma virus.
BAQ	brain-age quotient.
BAR	bariatrics; barometer, barometric.
bar	barometric.
BAR	beta-adrenergic receptor.
BAR	biofragmentable anastomosis ring.
BARB	barbiturates.
Barb,	barb barbiturate, barbituric.
BARK	beta-adrenergic receptor kinase.
Barn	benzamide.
BARN	bilateral acute retinal necrosis.
BARS	behaviorally anchored rating scale.
BART	blood-activated recalcification time.
BAS	balloon atrial septostomy
BaS	barium swallow.
bas	basilar.
bas	basophil, basophilic.
Bas	basophils.
BAS	benzyl anti-serotonin.
BAS	beta-adrenergic stimulation.
BAS	boric acid solution.
Bas.	basal
BASA	Boston Assessment of Severe Aphasia.
BASE	B27-arthritis-sacroiliitis-extra-articular features (syndrome).
BASH	body acceleration synchronous with heart rate.
BASI	barley alpha-amylase/subtilisin inhibitor.
BASIC	Beginner's All-Purpose Symbolic Introduction Code.
baso	basophil.
BASO	British Association of Surgical Oncologists.
basos	basophils (leukocytes).
BASPCAN	British Association for the Study and Prevention of Child Abuse and Neglect.
BAT	basic aid training.
BAT	best available technology.
BAT	blunt abdominal trauma.
BAT	brown adipose tissue.
BAUS	British Association of Urological Surgeons.
BAV	bicuspid aortic valve.
BAVCP	bilateral abductor vocal cord paralysis.
BAVFO	bradycardia after arteriovenous fistula occlusion.
BAW	bronchoalveolar washing.
BB	bad breath.
BB	bed bath.
BB	bed board.
BB	beta blockade, beta blocker.
BB	BioBreeding (rat).
BB	blanket bath.
BB	blood bank.
BB	blood buffer.
BB	blow bottle.
BB	blue bloaters (emphysema).
bb	Bolton point.
BB	borderline.
bb	both bones.
BB	both bones.
BB	breakthrough bleeding.
BB	breast biopsy.
BB	brush border.
BB	buffer base.
BB	bundle branch.
BB	isoenzyme of creatine kinase containing two B subunits.
BB/FS	breast biopsy/frozen section
BBA	born before arrival.
BBB	blood buffer base.
BBB	blood-brain barrier.
BBB	bundle branch block.
BBBB	bilateral bundle-branch block.
BBBD	blood brain barrier disruption.
BBC	Belgian Bone Club (EFFO Member Society).
BBC	bromobenzycyanide.
BBD	benign breast disease.
BBE	Bacteroides bile esculin (agar).
BBEP	brush border endopeptidase.
BBF	bronchial blood flow.
BBI	Biomedical Business International.
BBI	Bowman-Birk soybean inhibitor.
BBIW	BioBreeding/Worcester (rat).
BBM	brush border membrane.
BBMV	brush border membrane vesicle.
BBN	broad band noise.
BBRS	Burks' Behavior Rating Scale.
BBS	Barolet-Biedl syndrome.
BBS	bashful bladder syndrome.
BBS	benign breast syndrome.
BBS	bilateral breath sounds.
BBS	bombesin.
BBS	borate-buffered saline.
BBS	brown bowel syndrome.
BBT	basal body temperature
BC	Bachelor of Surgery (Lat.Baccalaureus Chirurgiae).
BC	back care.
BC	bactericidal concentration.
BC	basal cell.
BC	basket cell.
BC	battle casualty.
BC	bicarbonate.
BC	biliary colic.
BC	bipolar cell.
BC	birth control.
BC	blastic crisis.
BC	blood count.
BC	blood culture.
BC	Blue Cross (plan).
BC	board certified.
BC	bone conduction.
BC	brachiocephalic.
BC	breast cancer.
BC	bronchial carcinoma.
BC	buccal cartilage.
BC	buccocervical.
BC	buffy coat.
BC/BS	Blue cross/Blue shield.
BCA	balloon catheter angioplasty.
BCA	bicinchoninic acid.
BCA	blood color analyzer.
BCA	Blue Cross Association.
BCA	branchial cleft anomaly.
BCA	breast cancer antigen.
BCAA	branched chain amino acid.
BCAg	basal-cell antigen.
BCAT	brachiocephalic arterial trunk.
BCB	blood-cerebrospinal fluid barrier.
BCB	brilliant cresyl blue.
BCBR	bilateral carotid body resection.
BCBSA	Blue Cross and Blue Shield Association.
BCC	basal cell carcinoma.
BCC	benign cellular changes (pap smear).
BCC	biliary cholesterol concentration.
BCC	birth control clinic.
bcc	body-centered-cubic.
BCCG	British Cooperative Clinical Group.
BCCP	biotin carboxyl carrier protein.
BCD	binary-coded decimal.
BCD	bleomycin, cyclophosphamide, dactinomycin.
BCDDP	Breast Cancer Detection Demonstration Project.
BCDF	B-cell differentiation factor.
BCDL	Brachmann-Cornelia de Lange (syndrome).
BCDRS	brief Carroll depression rating scale.
BCDS	bulimia cognitive distortions scale.
BCDSP	Boston Collaborative Drug Surveillance Program.
BCE	basal cell epithelioma.
BCE	benign childhood epilepsy.
BCE	bubble chamber equipment.
BCEI	breast cancer estrogen-inducible.
BCF	basophil chemotactic factor.
BCF	bioconcentration factor.
BCF	breast cyst fluid.
BCFP	breast cyst fluid protein.
BCG	bacille Calmette-Guérin (vaccine).
BCG	ballistocardiography, ballistocardiogram.
BCG	bicolor guaiac test.
BCG	bromcresol green.
BCGF	B-cell growth factor.
BCh	Bachelor of Surgery (Lat.Baccalaureus Chirurgiae).
BCH	basal cell hyperplasia.
BChD	Bachelor of Dental Surgery.
BCHE	butyrylcholinesterase.
BChir	Bachelor of Surgery (Lat.Baccalaureus Chirurgiae).
Bchl,	bChl bacterial chlorophyll.
BCHS	Bureau of Community Health Services.
BCHT	bicaval heart transplantation.
BCI	behavioral cues index.
BCI	brain-computer interface.
BCIA	Biomedical Clinical Instrumentation Association.
BCIP	5-bromo-4-chloro-3-inodolyl phosphate.
BCKA	branched-chain keto acid.
BCKD	branched-chain alpha-keto acid dehydrogenase.
BCL	basic cycle length.
BCL	B-cell leukemia/lymphoma.
bcl-2	(B-cell lymphoma-2) a gene that inhibits apoptosis; overexpression may cause follicular lymphomas.
BCLPD	B-cell chronic lymphoprolipherative disorders.
BCNU	carmustine.
BCP	birth control pills.
bcr	breakpoint cluster region.
BCS	breast conservation surgery.
BD	(Lat: bis die) twice a day.
BD	band.
BD	barbital-dependent.
BD	barbiturate dependence.
BD	base deficit.
BD	base of prism down.
BD	basophilic degeneration.
BD	Batten disease.
BD	behavioral disorder.
BD	Behcet disease.
BD	belladonna.
BD	bicarbonate dialysis.
BD	bile duct.
BD	binocular deprivation.
BD	biotinylated dextran.
BD	birth date.
BD	black death.
BD	block design (test).
BD	blood donor.
BD	blue diaper (syndrome).
BD	board.
BD	border disease.
BD	borderline dull.
BD	bound.
BD	Bowen disease.
BD	brain damage.
BD	brain dead, brain death.
BD	Briquet disorder.
BD	bronchodilation, bronchodilator.
BD	buccodistal.
BD	bundle.
BD	buoyant density.
BD	Byler disease.
BDG	bidirectional Glenn shunt.
BDI	blunt duodenal injury.
BDI-1	monoclonal antibody against human bladder carcinoma.
BDI-PC	Beck Depression Inventory for Primary Care.
BE	barium enema.
BE	below the elbow.
BE	benzoylecgonine (cocaine).
BE	brisk and equal.
BEA	2-bromoethylamine hydrobromide.
BEC2	an anti-idiotypic monoclonal antibody that mimics the ganglioside GD3.
BELI	beta-Endorphin-like immunoreactivity.
BEMS	Bioelectromagnetics Society.
BERG	balloon-assisted endoscopic retroperitoneal gasless (BERG lumbar interbody fusion).
beta-2M	beta-2 microglobulin level.
BF	biofiltration.
BF	blood flow.
BF	bone fragment.
bFGF	basic fibroblast frowth factor.
BG	bone graft.
BGB	bisglucuronosyl bilirubin.
BGS	balance, gate, station
BGTT	borderline glucose tolerance test.
BH cells	baby hamster kidney cells.
BHA	butylated hydroxyanisole.
BHG	Belgian Hand Group.
BHIA	British Healthcare Internet Association.
BHP	benign hypertrophic prostate.
BHS	beta hemolytic streptococcus.
BHT	blunt head trauma.
BHT	butylated hydroxytoluene.
BHV-1	Bovine Herpesvirus-1.
BI	background interval.
BI	bacterial or bactericidal index.
BI	base-in (prism).
BI	basilar impression.
BI	Billroth I (operation).
BI	biological indicator.
BI	biotechnology informatics.
BI	bodily injury.
BI	bone impaction.
BI	bone injury.
BI	brain injury.
BI	burn index
Bi	prefix meaning both sides (e.g. bilateral); two components (e.g. biphasic).
Bic.	biceps.
BID	brought in dead.
BID/BD	twice a day (bis in die).
BIJC	The British Isles Joint TNM Classification.
BIL	bilateral
bilat.	bilateral.
BILI	bilirubin.
BIN	bin, twice a night.
BIP	bronchiolitis obliterans with interstitial pneumonia.
BIR	baculovirus IAP repeat.
BIR	British Institute of Radiology.
BIRP	B1-independent rotation phase-cycled.
BIRP	BIR-containing proteins.
Bis-GMA	bisphenol-a-glycidyl methacrylate.
BiVAS	biventricular assist system.
biw	twice a week.
BJ	Bence Jones (proteinuria).
BJ	biceps jerk.
BJ	bone and joint.
BJE	bones, joints, extremities
BJM	bones, joints, muscles.
BK	back.
BK	below the knee.
BKA	below knee amputation.
BKP	back pain.
BL	bilateral lower lung fields.
BL	blood loss.
Blad.	bladder.
BLE	both lower extremities.
BLEED	bleeding (ongoing), low systolic blood pressure, elevated prothrombin time, erratic mental status, disease (unstable comorbid disease) (mnemonic for gastro-intestinal hemorrhage).
BLP	beta-lipotropin.
BLPD	B-cell lymphoproliferative disorder.
BLQ	both lower quadrants.
BLS	basic life support.
BLS-D	basic life support and defibrillation.
BM	basal metabolism.
BM	blood monitoring.
BM	body mass.
BM	bone marrow.
BM	bowel movement.
BMA	British Medical Association.
BMA	butyl methacrylate.
BMD	3-(s)-[(benzyloxycarbonyl)methyl].
BMD	Becker muscular dystrophies.
BMD	Best's macular dystrophy.
BMD	bone mineral density.
BMES	Biomedical Engineering Society.
BMG	benign monoclonal gammopathy.
BMI	body mass index.
BMJ	British Medical Journal.
BMMEC	bone marrow microvascular endothelial cells.
BMN	bone marrow necrosis.
BMP	bone morphogenetic protein.
BMR	basal metabolic rate.
BMT	bone marrow transplant (see HDC and HDC/BMT).
BMZ	basement membrane zone.
BN	bound niacin.
BN	bulimia nervosa.
BND	barely noticeable difference.
BNLI	British National Lymphoma Investigation.
BNO	bladder neck obstruction.
BNST	bed nucleus of the stria terminalis.
BOA	born on arrival.
BOA	British Oncology Association.
BOA	British Orthopaedic Association.
BODMA	British Oncology Data Managers Association (UK).
BOE	bilateral otitis externa.
BOLD	blood oxygenation level-dependent.
BOM	bilateral otitis media.
BOO	bladder outlet obstruction.
BOOP	bronchiolitis obliterans-organizing pneumonia.
BOP	blood, ova, parasites.
BOS	Bombay Orthopaedic Association.
BOTA	Belgian Orthopaedic Trauma Association.
BOW	bag of waters.
BP	B/P, blood pressure.
BP	bipolar.
BP	body part.
BP	bullous pemphigoid.
BPC	blood pressure cuff.
BPC	bronchoprovocation challenge.
BPD	biparietal diameter.
BPD	borderline personality disorder.
BPD	bronchopulmonary dysplasia.
BPD	Transmission Chain Burnup Reactor Computer Code.
BPH	benign prostatic hypertrophy.
BPI	bactericidal permeability increasing protein.
BPI	Brief Pain Inventory.
BPL	Bauchinia purpurea alba.
bpm	beats per minute.
BPP	blood pressure and pulse.
BPPV	benign paroxysmal positional vertigo.
BPR	brief psychiatric rating (scale).
BPS	Belgian Pain Society.
BPTB	bone-patellar tendon-bone.
BR	bacteriorhodopsin.
BR	bathroom.
BR	bedrest.
BRAT	a fusion protein between the membrane protein bacteriorhodopsin (BR) and the catalytic subunit of aspartyl transcarbamylase from Escherichia coli.
BRAT	Baylor Rapid Autologous Transfusion system.
BRAT	Behaviour Research and Therapy.
brat	brain tumor gene.
BRB	bright red blood.
BRBPR	bright red blood per rectum.
BRCA1 & BRCA2	(pronounced bra,ka one ...) genes, prone to multiple mutations, that are involved in a percentage of the breast cancers.
BRD(C)	bovine respiratory disease (complex).
BRFSS	Behavioral Risk Factor Surveillance system.
BRM	biological response modifier.
BRP	bathroom privileges.
BRW	breast meat weight.
BRY	breast meat yield.
BS	blood sugar.
BS	bowel sounds.
BS	breath sounds.
BS	bronchial secretion.
BSA	body surface area.
BSA	bovine serum albumin.
BSA	bowel signs active.
BSAEP	brain stem auditory evoked potentials.
BSC	bedside commode.
BSE	bovine spongiform encephalopathy.
BSE	breast self examination.
BSER	brainstem evoked response audiometry.
BSI	bloodstream infections.
BSL	baseline.
BSN	bowel sounds normal.
BSO	bilateral salpingo-oophorectomy.
BSP	bromsulphalein (dye).
BSPh	bachelor of science in pharmacy.
BSQ	behavior style questionnaire.
BSR	basal skin resistance.
BSR	blood sedimentation rate.
BSR	bowel sounds regular.
BSR	brain stimulation reinforcement.
BSR	Buschke selective reminding (test).
BSS	Bachelor of Sanitary Science.
BSS	balanced salt solution.
BSS	Bernard-Soulier syndrome.
BSS	black silk suture.
BSS	British Scoliosis Society.
BSS	buffered salt solution.
BSS	buffered single substrate.
BSSE	bile salt-stimulated esterase.
BSSG	sitogluside.
BSSH	British Society for Surgery of the Hand.
BSSL	bile salt-stimulated lipase.
BST	bacteriuria screening test.
BST	blood serologic test.
BST	brief stimulus therapy.
BSTFA	bis-trimethylsilyltrifluoroacetamide.
BSU	Bartholin, Skene, urethral (glands).
BSU	basic structural unit.
BSU	British standard unit.
BSV	binocular single vision.
BT	base of tongue.
BT	bedtime.
BT	bitemporal.
BT	bitrochanteric.
BT	bladder tumor.
BT	Blalock-Taussig (shunt).
BT	bleeding time.
BT	blood type, blood typing.
BT	blue tetrazolium.
BT	blue tongue.
BT	body temperature.
BT	borderline tuberculoid.
BT	botulinum toxin.
BT	bovine turbinate (cells).
BT	brain tumor.
BT	breast tumor.
Bt2cAMP	N6,O2c- dibutyryladenosine 3c:5c-cyclic monophosphate, a dibutyryl derivative of cAMP.
BTA	Blood Transfusion Association.
BTB	breakthrough bleeding.
BTB	bromthymol blue.
BTBL	bromothymol blue lactose.
BTC	basal temperature chart.
BTC	biliary tract complication.
BTC	body temperature chart.
BTCG	Brain Tumor Cooperative Group.
BTD	biliary tract disease.
BTDS	benzoylthiamine disulfide.
BTE	behind the ear (hearing aid).
BTE	bovine thymus extract.
BTFS	breast tumor frozen section.
BTG	beta-thromboglobulin.
BTg	bovine trypsinogen.
BthU	British thermal unit.
BTL	bilateral tubal ligation.
BTLS	basic trauma life support.
BTM	benign tertian malaria.
BTM	blood temperature monitor.
BTMSA	bis-trimethylsilacetylene.
BTP	biliary tract pain.
BTP	biological treatment planning.
BTPABA	N-benzoyl-L-tyrosyl-p-aminobenzoic acid.
BTPS	at body temperature and ambient pressure, and saturated with water vapor (gas).
BTR	Bezold-type reflex.
BTR	biceps tendon reflex.
BTR	biceps tendon reflex.
BTr	bovine trypsin.
BTS	blood transfusion service.
BTS	blue toe syndrome.
BTS	bradycardia-tachycaxdia syndrome.
BTSG	Brain Tumor Study Group.
bTSH	bovine thyroid-stimulating hormone.
BTU	British thermal unit.
BTV	blue tongue virus.
BTW	back to work.
BTW	by the way.
BTx	blood transfusion.
BTX	botulinum toxin.
BTX	brevetoxin.
BTZ	benzothiazepine.
BU	base of prism up.
BU	Bethesda unit.
BU	blood urea.
BU	Bodansky unit.
BU	bromouracil.
BU	burn unit.
BU	Buruli ulcer.
Bu	bushel.
Bu	butyl.
BUA	blood uric acid.
BUA	broadband ultrasonic attenuation.
BUAS	Boston University Accutane Survey.
Buc	Bucc, buccal.
BUDR	bromodeoxyuridine.
BUDS	bilateral upper dorsal sympathectomy.
BUE	both upper extremities.
BUF	buffalo (rat).
BUG	buccal ganglion.
BUI	brain uptake index.
BULIT	bulimia test.
BuMed	Bureau of Medicine and Surgery.
BUMP	behavioral regression or upset in hospitalized medical patients (scale).
BUN	blood urea nitrogen.
BUN/CR	blood urea nitrogen/creatine ratio.
BUO	bleeding of undetermined origin, bruising of undetermined origin.
BUQ	both upper quadrants.
BUR	bilateral ureteral occlusion.
BUS	Bartholin, urethral, and Skene glands.
BUS	busulfan.
But	but, butyrate, butyric.
BV	bacitracin V.
BV	bacterial vaginosis.
BV	biological value.
BV	blood vessel.
BV	blood volume.
BV	bronchovesicular.
BVA	Blind Veterans Association.
BVA	British Veterinary Association.
BVAD	biventricular assist device.
BVAS	Birmingham Vasculitis Activity Score (prognostic scoring systems).
BVC	British Veterinary Codex.
BVD	bovine viral diarrhea.
BVD-MD	bovine viral diarrhea-mucosal disease.
BVDT	brief vestibular disorientation test.
BVDU	bromovinyldeoxyuridine.
BVDV	bovine virus diarrhea virus.
BVE	binocular visual efficiency.
BVE	blood vessel endothelium.
BVE	blood volume expander.
BVGHV	Belgian Society of Medicine and Surgery of the Foot.
BVH	biventricular hypertrophy.
BVI	blood vessel invasion.
BVL	bilateral vas ligation.
BVM	bag-valve-mask.
BVM	bronchovascular markings.
BVM	Bureau of Veterinary Medicine.
BVMGT	Bender Visual-Motor Gestalt Test.
BVMOT	Bender Visual-Motor Gestalt Test.
BVMS	Bachelor of Veterinary Medicine and Science.
BVO	branch vein occlusion.
BVOT	Belgische Vereniging voor Orthopedie en Traumatologie.
BVP	blood vessel prosthesis.
BVP	blood volume pulse.
BVP	burst of ventricular pacing.
BVR	baboon virus replication.
BVR	bureau of vocational rehabilitation.
BVS	blanked ventricular sense.
BVSc	Bachelor of Veterinary Science.
BVU	bromoisovalerylurea.
BVV	bovine vaginitis virus.
BW	bacteriological warfare.
BW	bed wetting.
BW	below waist.
BW	biological warfare.
BW	biological weapon.
BW	birth weight.
BW	black woman.
BW	bladder washout.
BW	blood Wasserman (reaction).
BW	body water.
BW	body weight.
BWD	bacillary white diarrhea.
BWFI	bacteriostatic water for injection.
BWI	birth weight.
BWS	battered woman (or wife) syndrome.
BWS	Beckwith-Wiedemann syndrome.
BWST	black widow spider toxin.
BWSV	black widow spider venom.
Bwt	body weight.
BWYV	beet western yellow virus.
BX	bx, bacitracin X.
BX	Bx, biop., biopsy.
BXO	balanitis xerotica obliterans.
ByCPR	bystander cardiac pulmonary resuscitation.
BYDV	barley yellow dwarf virus.
BYE	Barila-Yaguchi-Eveland (medium).
BZ	benzodiazepine.
Bz	Bzl, benzoyl.
BZD	benzodiazepine.
BZQ	benzquinamide.
BZRP	benzodiazepine receptor peripheral (type).
BZS	Bannayan-Zonana syndrome.
C (1160 abbreviations)
C sect	C-section, cesarean section.
C&C	cold and clammy.
C&M	cocaine and morphine.
C&S	calvarium and scalp.
C&S	conjunctiva and sclera.
C&S	culture and sensitivity.
c(with line over it)	with.
C	Celsius, centigrade, complement
C	certainty factor.
c	clinical.
C	clonidine.
C	cortex.
C	cysteine.
C	cytosine.
C	List.
C	standard clearance.
C	static respiratory compliance.
C/C	chief complaint.
C/M	counts per minute.
C/O	care of; complains of.
C/S	cesarean section.
C/S	cycles per second.
c/w	compatible with.
C/W	continue with.
C02	carbon dioxide.
C1 - C7	Cervical vertebrae.
C4S	chondroitin-4-sulfate.
Ca	calcium.
CA	cancer.
CA	carbonic anhydrase.
CA	carcinoma.
CA	cardiac arrest.
CA	catchment area.
CA	Caucasian adult.
CA	chromosomal aberration.
CA	chronological age.
CA	controlled atmospheres.
CA	cornu Ammonis (Ammon's horn).
CA	corpus allatum.
CA	cytoxan plus adriamycin (treatment regimen).
CAA	cerebral amyloid angiopathy.
CAA	cytosine-adenine-adenine codon for glutamine.
CAB	coronary artery bypass.
CABG	coronary artery bypass graft.
CAC	cytosine-adenine-cytosine codon for histidine.
CACO3	calcium carbonate.
CAD	coronary artery disease.
CAE	carotid artery endarterectomy.
CAF	caffeine.
CAF	Caucasian adult female
CAF	cell adhesion factor.
CAF	chloramphenicol.
CAF	chronic atrial fibrillation.
CAF	citric acid fermentation.
CAF	cyclophosphamide, adriamycin, and 5-fluorouracil.
CAG	cytosine-adenine-guanine codon for glutamine.
CAH	chronic active hepatitis.
CAI	carbonic anhydrase inhibitor.
CALGB	Cancer and Leukemia Group B (USA).
cALL	common ALL.
CALLA	common acute lymphoblastic leukemia antigen.
CAM	Caucasian adult male.
CAM	Complementary and Alternative Medicine.
CAMIS	Computer Assisted Minimally Invasive Surgery (Cleveland Clinic Foundation).
c-ANCA	cytoplasmic antineutrophil cytoplasmic antibodies.
CAO	chronic airflow obstruction.
CAOS	Computer Assisted Orthopaedic Systems (Hull University).
CAP	College of American Pathologists.
CAPD	continuous ambulatory peritoneal dialysis.
CAPMR	Canadian Association of Physical Medicine & Rehabilitation.
caps	capsules.
Car	carbapenem.
CAREMIS	Current Agricultural Management Information System.
CAS	computer aided surgery (Journal).
CaSac	calcium saccharin.
CASIB	computer-assisted frameless stereotactic interstitial brachytherapy.
CAST-6	Children of Alcoholics Screening Test, 6-Item Version.
CASTLE	carcinoma showing thymus-like differentiation.
CAT	cataract.
CAT	chloramphenicol avetyltransferase.
CAT	coital alignment technique.
CAT	computed axial tomography.
CATCH	critically attained threshold of cerebral hypoperfusion.
Cath	catheter.
CAU	cytosine-adenine-uracil codon for histidine.
CAV	cytoxan, adriamycin, and vincristine.
CAVB	chronic AV block.
CAVH	continuous arterio-venous haemofiltration.
CAVHD	continuous arterio-venous haemodialysis.
CB	chest-back.
CB	chronic bronchitis
CB	current complaint.
CB/CC	centroblastic/centrocytic lymphoma.
CB3S	Coxsackie B3 virus susceptibility.
CBC	combinatorial chemistry.
CBC	complete blood count.
CBD	common bile duct.
CBD	corticobasal degeneration.
CBDS	corticobasal degeneration syndrome.
CBF	cerebral blood flow.
CBF	core binding factor (16q22).
CBF	coronary blood flow.
CBG	cortisol binding globulin.
CBGD	cortical-basal ganglionic degeneration.
CBI	continuous bladder irrigation.
CBP	colon anastomosis bursting pressure.
CBPP	contagious bovine pleuropneumonia.
CBQ	California Behavior Questionnaire.
CBQ	cellobiose:quinone oxidoreductase.
CBQ	Childbearing Questionnaire.
CBQ	Children's Behavior Questionnaire.
CBQ	Conflict Behavior Questionnaire.
CBR	complete bed rest.
CBS	cervicobrachial syndrome
CBS	chronic brain syndrome.
CBS	clinical behavioral science.
CBS	conjugated bile salts.
CBS	culture-bound syndrome.
CBS	cystathionine beta-synthase.
CBT	carotid body tumor.
CBT	cognitive behavioral treatment/therapy.
CBT	computed body tomography.
CBV	capillary blood cell velocity.
CBV	catheter balloon valvuloplasty.
CBV	central blood volume.
CBV	cerebral blood volume.
CBV	circulating blood volume.
CBV	corrected blood volume.
CBV	cortical blood volume.
CBV	Coxsackie B virus.
CBVD	cerebrovascular disease.
CBW	chemical and biological warfare.
CBX	computer-based examination.
CBZ	carbamazepine.
CC&C	colony count and culture.
CC	Caucasian child.
CC	cc, cubic centimeter.
CC	chief complaint.
cc	clean catch.
CC	closed cup.
CC	closing capacity.
CC	collagenous colitis.
CC	colony count.
CC	colorectal cancer.
CC	columnar cells.
CC	commission certified.
CC	common cold.
CC	complicating condition.
CC	compound cathartic.
CC	computer calculated.
cc	concave.
Cc	concave.
CC	concordance.
CC	congenital cardiopathy.
CC	congenital cataract.
CC	consumptive coagulopathy.
CC	contrast cystogram.
CC	conversion complete.
C-C	convexo-concavc.
CC	coracoclavicular.
CC	cord compression.
CC	corpora cardiaca.
CC	corpus callosum.
cc	corrected.
CC	costochondral.
CC	Coulter counter.
CC	craniocaudal.
CC	craniocervical.
CC	creatinine clearance.
CC	critical care.
CC	critical condition.
CC	Crohn colitis.
CC	Cronkhite-Canada (syndrome).
CC	crus cerebri.
cc	cubic centimeter.
CC	Current Contents.
CCA	cephalin cholesterol antigen.
CCA	chick cell agglutination.
CCA	chimpanzee coryza agent.
CCA	choriocarcinoma.
CCA	circulating cathodic antigen.
CCA	circumflex coronary artery.
CCA	common carotid artery.
CCA	congenital contractural arachnodactyly.
CCA	constitutional chromosome abnormality.
CCA	Consultative Committee on Agriculture .
CCA	cytosine-cytosine-adenine codon for proline.
CCAT	chick cell agglutination test.
CCAT	conglutinating complement absorption test.
CCB	calcium channel blocker.
CCBV	central circulating blood volume.
CCC	care-cure coordination.
CCC	cathodal closure contraction.
CCC	chronic calculous cholecystitis.
CCC	chronic catarrhal colitis.
CCC	comprehensive care clinic.
CCC	concurrent care concern.
CCC	consecutive case conference.
CCC	council on clinical classification.
CCC	critical care complex.
CCC	cylindrical confronting cistemae.
CCC	cytosine-cytosine-cytosine codon for proline.
CCCAD	The Canadian Consensus Conference on the Assessment of Dementia.
CCCC	centrifugal countercurrent chromatography
cccDNA	covalently closed circular deoxyribonucleic acid.
CCCE	cross-cultural cognitive examination.
CCCI	cathodal closure clonus.
CCCP	carbonyl cyanide m-chloro-phenyl-hydrazone.
CCCR	closed chest cardiac resuscitation.
CCCS	Canadian Committee on Cancer Staging.
CCCS	condom catheter collecting system.
CCCT	closed craniocerebral trauma.
CCCU	comprehensive cardiac care unit.
CCD	calibration curve data
CCD	central core disease.
CCD	charge-coupled device.
CCD	childhood celiac disease.
CCD	cleidocranial dysplasia.
CCD	clinical cardiovascular disease.
CCD	countercurrent distribution.
CCD	cumulative cardiotoxic dose.
CCDC	Canadian Communicable Disease Center.
CCDN	Central Council for District Nursing.
CcDNA	closed circle deoxyribonucleic acid.
CCE	carboline carboxylic acid ester.
CCE	chamois contagious ecthyma.
CCE	clear-cell endothelioma.
CCE	countercurrent electrophoresis.
CCE	cyanosis, clubbing or edema.
CCEHRP	Committee to Coordinate Environmental Health and Related Programs.
CCEI	Crown-Crisp Experimental Index.
CCF	cancer coagulation factor.
CCF	cardiolipin complement fixation.
CCF	carotid-cavernous fistula.
CCF	centrifuged culture fluid.
CCF	cephalin-cholesterol flocculation.
CCF	compound comminuted fracture.
CCF	congestive cardiac failure.
CCF	crystal-induced chemotactic factor..
CCFA	cefotoxin-cycloserine fructose agar.
CCFAS	compact colony-forming active substance.
CCFE	cyclophosphamide, cisplatin, fluorouracil, and extramustine.
CCFMG	Cooperating Committee on Foreign Medical Graduates.
CCFPC	Certificant member, College of Family Physicians of Canada.
CCG	Children's Cancer Group (USA).
CCG	cholecystogram, cholecystography.
CCG	clinically coherent group.
CCG	cytosine-cytosine-guanine codon for proline.
CCGC	capillary column gas chromotography.
CCH	C-cell hyperplasia.
CCh	cholinergic agonist carbachol.
CCH	chronic chloride hemagglutination.
CCH	chronic cholestatic hepatitis.
CCH	circumscribed choroidal hemangiomas.
CCHA	Canadian Council on Hospital Accreditation.
CCHD	Chester County Health Department.
CCHD	cyanotic congenital heart disease.
CCHE	Central Council for Health Education.
CCHFA	Canadian Council on Health Facilities Accreditation.
CCHMS	Central Committee for Hospital Medical Services.
CCHP	Consumer Choice Health Plan.
CCHS	congenital central hypoventilation syndrome.
CCI	Cardiovascular Credentialing International.
CCI	cholesterol crystallization inhibitor.
CCI	chronic coronary insufficiency.
CCI	common client interface.
CCI	corrected count increment.
CCID50	cell culture infectious dose 50 %.
CCK	cholecystokinin.
CCK-8	cholecystokinin octapeptide.
CCKLI	cholecystokinin-like immunoreactivity
CCK-OP	cholecystokinin octapeptide.
CCK-PZ	cholecystokinin-pancreozymin.
CCKRB	cholecystokinin receptor B.
CCL	carcinoma cell line.
CCL	certified cell line.
CCL	Charcot-Leyden crystal.
CCL	continuing care level.
CCL	critical carbohydrate level.
CCLI	composite clinical and laboratory index.
CCM	cerebrocostomandibular (syndrome).
CCM	chemical cleavage of mismatch.
CCM	congestive cardiomyopathy.
CCM	contextual choice model.
CCM	craniocervical malformation.
CCM	critical care medicine.
CCMC	Committee on the Costs of Medical Care.
CCME	Coordinating Council on Medical Education.
CCMS	cerebrocostomandjbular syndrome.
CCMS	clean catch midstream (urine).
CCMS	clinical care management system.
CCMSU	clean catch midstream urine.
CCMT	catechol methyltransferase.
CCMU	critical care medical unit.
CCN	caudal central nucleus.
CCN	community care network.
CCN	coronary care nursing.
CCN	critical care nursing.
CCNHP	community college nursing home project.
CCNU	N-(2-chloroethyl)-N'-cyclo-hexyl-N-nitrosourea.
CCO	cytochrome C oxidase.
CCOT	cervical compression overloading test.
CCPD	continuous cycling peritoneal dialysis.
CCR	continuous complete remission.
CCRG	Children's Cancer Research Group (Oxford, UK).
CCS	Canadian Cancer Society.
CCS	serum corticosterone.
CCSC	Canadian Cardiovascular Society Classification.
CCU	coronary/cardiac care unit.
CCU	cytosine-cytosine-uracil codon for proline.
CD	cadaver donor.
CD	Cadmium (Cd).
CD	candela (cd).
CD	canine distemper.
CD	canine dose.
CD	carbohydrate dehydratase.
CD	carbon dioxide.
CD	cardiac disease.
CD	cardiac dullness.
CD	cardiac dysrhythmia.
CD	cardiovascular disease.
CD	Carrel-Dakin (fluid).
CD	Castleman disease.
CD	caudad, caudal.
CD	caudal (cd or cd).
CD	cause of death.
CD	celiac disease.
CD	cell dissociation.
CD	cervico dorsal.
CD	cesarean delivery.
CD	chemical dependancy.
CD	circular dichroism.
CD	cluster of differentiation (eg. CD4, CD8) - full list of CDs.
CD	coccygeal (cd).
CD	color doppler.
CD	combination drug.
CD	common (bile) duct.
CD	communicable disease.
CD	compact disk.
CD	completely denaturated.
CD	conceptual design.
CD	conduct disorder.
CD	conduction disorder.
CD	condylion (cd).
CD	conjugata diagonalis.
CD	consanguineous donor.
CD	consent decree.
CD	contact dermatitis.
CD	contagious disease.
CD	control diet.
CD	controlled drug.
CD	conventional dialysis.
CD	convulsive disorder.
CD	convulsive dose.
CD	corneal dystrophy.
CD	Cotrel-Dubousset (rod).
CD	Crohn disease.
CD	crossed diagonal.
CD	curative dose.
CD	cutdown.
CD	cystic duct
CD138	plasma cell membrane receptor.
CD138/B-B4	immunoperoxidase stain using an antibody against CD 138.
CDA	congenital dyserythropoietic anemia.
CDC	Centers for Disease Control.
CDG	Congenital disorders of glycosylation.
CDGS	carbohydrate-deficient glycoprotein syndrome.
CDH	congenital dislocation of the hip.
CDH	congenital dysplasia of hip.
CDI	clean, dry, intact.
Cdiff	C-diff, Clostridium difficile.
CDMS	clinically definite multiple sclerosis.
cDNA	complementary DNA (a synthetic DNA copied from mRNA).
CDO	congenital duodenal obstruction.
CDR	Clinical Dementia Rating.
CDR	complementarity-determining regions.
CDS	cervico-dorsal syndrome.
CDT	carbohydrate-deficient transferrin.
CE angle	(radiograph) center-edge angle.
CE	carboxylesterases.
CE	chloracetate esterase.
CE	european conformity.
CEA	carcinoembryonic antigen.
CEC	chloroethylclonidine.
CEF	cytoxan plus epirubicin plus 5.
Ceff	effective compliance; bedside method of monitoring the effectiveness of PEEP; equal with VT(tidal volume)/peak air pressure, should be greater than 50 cm3/cmH2O.
CENELEC	European Committee for Electrotechnical Standardization.
CERAD	Consortium to Establish a Registry for Alzheimer's Disease.
Cervical dil.	cervical dilation.
CEZ	cefazolin.
CF	Clofibrate.
CF	compare, refer to.
CF	complement fixation.
CF	cystic fibrosis.
CFAE	ceftiofur free acid equivalent.
CFC	colony-forming cells.
CFCOT	College Francais des Chirurgiens Orthopedistes et Traumatologues.
CFDI	colour-flow duplex imaging.
CFIDS	Chronic Fatigue and Immune Dysfunction Syndrome.
CFM	continuous electronic fetal monitoring.
CFNS	chills, fever, night sweats.
CFP	call for papers.
CFPC	College of Family Physicians of Canada.
CFS	Chronic Fatigue (and Immune Dysfunction) Syndrome.
CFS/ME	chronic fatigue syndrome (often called myalgic encephalomyelitis, especially in the UK).
CFTR	cystic fibrosis transmembrane regulator.
CFU	colony forming units.
CFUc	colony-forming unit cells.
CFU-GEMM	colony-forming units generating granulocytes, erythroblasts, macrophages, and megakaryiocytes.
CFU-S	spleen colony-forming units.
cg	centigram.
CG	chorionic gonadotropin.
CgA	chromogranin A.
CGA	compressed gas association.
CGA	Contact Guard Assist (physical therapy).
CGA	cytosine-guanine-adenine codon for arginine.
CGC	cytosine-guanine-cytosine codon for arginine.
CGCGGATC	Oct motif.
CGD	chronic granulomatous disease.
CGG	cytosine-guanine-guanine codon for arginine.
CGH	comparative genomic hybridization - cytogenetics method.
CGL	chronic granulocytic leukemia (previous name for CML).
CGN	crescentic glomerulonephritis.
CGRP	calcitonin gene-related peptide.
CGU	cytosine-guanine-uracil codon for arginine.
cGy	centi Gray (unit of radiation).
CH	characteristic.
CH	chest.
CH	chief.
CH	chronic.
CH	crown-heel.
ch. br. syn.	chronic brain syndrome.
CH50	total functional hemolytic complement.
CHA	calcium hydroxyapatite.
CHA	congenital hypoplastic anemia.
cHA	coralline hydroxyapatite.
CHD	congenital dislocation of the hip.
CHD	congenital heart disease
CHD	coronary heart disease.
ChE	cholinesterases.
chemo	chemotherapy.
CHF	congestive heart failure.
CHG	change.
CHI	closed head injury.
CHILD syndrome	congenital hemidysplasia with ichthyosiform erythrodermal and limb defects.
CHL	classical Hodgkin lymphoma.
ChlVPP	chlorambucil, vinblastine, procarbazine, and prednisone.
CHOL	serum cholesterol.
CHR	chronic.
CHR	chronological.
CHS	calvarial hyperostotic syndrome.
CHS	Chediak-Higashi syndrome.
CHS	customized headholder system.
CHS1	Chediak Higashi syndrome gene, located on chromosome 1 (1q42-44).
CHT	classical heart transplantation.
CI	cardiac index (cardiac output divided by the patient's body surface area); normal 2.8-4.2 L/min/m2.
CI	cardiac insufficiency.
CI	cerebral infarction.
CI	confidence interval.
CIA	collagen-induced arthritis.
CIBIC-Plus	Clinician's Interview Based Impression of Change Plus Caregiver Input.
CIC	circulating immune complexes.
CIC	crisis intervention clinic.
CICU	cardiac intensive care unit.
CID	carpal instability, dissociative.
CID	collision-induced dissociation.
CIDA	Canadian International Development Agency.
CIDP	chronic inflammatory demyelinating polyneuropathy.
CIG	cigarette consumption.
cig	cigarette.
CIG	cold insoluble globulin.
CIG	cryosurgical iceball gauge.
cIg	cytoplasmic immunoglobulin.
cIgM	cytoplasmic immunoglobulin M.
CIK	cytokine induced-killer cells.
CIMF	chronic idiopathic myelofibrosis.
CIMMYT	International Maize and Wheat Improvement Center.
CIN	cervical intraepithelial neoplasia (grades I, II, III).
CIND	carpal instability non-dissociative.
CIP	clinical investigation plan.
CIP	International Foot and Ankle Society.
CIRC	circulation.
CIRC	circumference.
CIS	carcinoma in situ.
cis-DDP	cis-diamminedichloroplatinum.
CISH	chromosomal in situ hybridization.
CJD	Creutzfeldt-Jakob disease.
CJF	carotid-jugular fistula.
CK 18	cytokeratin found in hepatocyte, renal tubular cell, ductular epithelia, mesothelia, and respiratory epithelia.
CK 1-8	neutral to basic cytokeratin.
CK 9-20	acidic cytokeratin.
CK	check.
CK	creatine kinase.
CK	cytokeratin.
CKD	result checked.
CKI	casein kinase I.
CKMB	creatine kinase muscle band.
CKS	classic Kaposi sarcoma.
CL VOID	clean voided specimen (urine).
CL(P)	cleft lip without cleft palate.
CL	capillary lumen.
CL	cardiolipin.
CL	cell line.
cl	centiliter.
CL	centralis lateralis.
CL	chemiluminescence.
CL	chest and left arm (lead in electrocardiography).
Cl	chloride.
Cl	chlorine.
CL	cholelithiasis.
CL	cholesterol-lecithin.
CL	chronic leukemia.
CL	cirrhosis of liver.
cl	clarified.
Cl	clavicle.
CL	clavicle.
cl	clean.
CL	clean.
CL	clear liquid.
cl	clear.
Cl	clear.
CL	clearance.
CL	cleft lip.
cl	cleft.
cl	clinic, clinical.
Cl	clinic.
CL	clinical laboratory.
CL	clomipramine.
cl	clonus.
CL	closed.
Cl	Clostridium.
Cl	closure.
cl	clotting.
cl	cloudy.
Cl	colistin.
CL	complex loading.
CL	confidence limit or level.
CL	constant domain of L chain.
C-L	consultation-liaison (setting).
CL	contact lens.
CL	corpus luteum.
CL	corrected (echo long axis) length.
CL	cricoid lamina.
CL	criterion level.
CL	critical list.
CL	cycle length.
CL	cytotoxic lymphocyte.
CL	lung compliance.
CL/CP	cleft lip/cleft palate.
CL/CP	cleft lip/cleft palate.
CL/P	cleft lip with or without cleft palate.
CLA	cerebellar ataxia.
CLA	Certified Laboratory Assistant.
CLA	cervicolinguoaxial.
CLA	contralateral local anesthesia.
CLA	cutaneous lymphocyte antigen.
CLA	cyclic lysine anhydride.
CL-ABE	chemiluminescence avidin-biotin enzyme-linked immunosorbent assay.
ClAc	chloroacetyl.
CLAH	congenital lipoid adrenal hyperplasia.
Clam	cervical laminectomy.
CLAS	congenital localized absence of skin.
class	classif, classification.
clav	clavicle.
CLB	chlorambucil.
CLB	curvilinear body.
CLBBB	complete left bundle branch block.
CLBP	chronic low back pain.
CLC	Charcot-Leyden crystal.
CLC	Clerc-Levy-Critesco (syndrome).
CLCD	cleidocranial dysostosis.
CLCN	chloride channel.
CLCP	chymotrypsin-like cationic protein.
CLCS	colchicine sensitivity.
CLD	chloride diarrhea.
CLD	chronic liver disease.
CLD	chronic lung disease.
CLD	congenital limb deficiency.
CLD	crystal ligand field.
CLDH	choline dehydrogenase.
CLDP	Commercial Law Development Program.
Cldy	cloudy.
CLE	centrilobular emphysema.
CLE	continuous lumbar epidural (anesthesia).
CLED	cystine-lactose-electrolyte-deficient (agar).
CLF	calcification of ligamentum flavum.
CLF	cardiolipin fluorescent (antibody).
CLF	ceroid lipofuscinosis.
CLF	cholesterol-lecithin flocculation.
CLH	chronic lobular hepatitis.
CLH	cleft limb-heart (syndrome).
CLH	corpus luteum hormone.
CLH	cutaneous lymphoid hyperplasia.
CLI	complement lysis inhibitor.
CLI	corpus luteum insufficiency.
CLIA	Clinical Laboratory Improvement Act.
CLIF	cloning inhibitory factor.
CLIF	Crithidia luciliae immunofluorescence.
clin	clinic, clinical.
CLINPROT	Clinical Cancer Protocols.
CLIP	capitolunate instability pattern.
CLIP	corticotropin-like intermediate lobe peptide.
CL-IVR	cycle length of the idioventricular rhythm.
CLL	cholesterol-lowering lipid.
CLL	chronic lymphocytic leukemia.
CLL	cow lung lavage.
CLL/SLL	chronic lymphocytic leukemia/small lymphocytic lymphoma.
CLMA	Clinical Laboratory Management Association.
CLMF	cytotoxic lymphocyte maturation factor.
CLML	Current List of Medical Literature.
CLMV	cauliflower mosaic virus.
clo	"clothing"-a unit of thermal insulation.
CLO	cod liver oil.
CLOF	clofibrate.
CLON	clonidine.
Clon	Clonorchis.
Clostr	Clostridium.
CLP	chymotrypsin-like protein.
CLP	cleft lip with cleft palate.
ClP	clinical pathology.
CLP	paced cycle length.
CLS	café-au-lait spot.
CLS	Clinical Laboratory Scientist.
CLS	Coffin-Lowry syndrome.
CLS	Cornelia de Lange syndrome.
CLSE	calf lung surfactant extract.
CLSH	corpus luteum stimulating hormone.
CLSL	chronic lymphosarcoma (cell) leukemia.
CLSM	confocal laser scanning microscopy.
CLT(NCA)	Laboratory Technician Certified by the National Certification Agency for Medical Laboratory Personnel.
CLT	Certified Laboratory Technician.
CLT	chronic lymphocytic thyroiditis.
CLT	Clinical Laboratory Technician.
CLT	clot lysis time.
CLT	clotting time.
CLT	lung-thorax compliance.
CLTB	total body clearance.
CLU	clusterin.
CLV	cassava latent virus.
CLV	constant linear velocity.
CLZ	clozapine.
CM	California mastitis (test).
CM	calmodulin
CM	capreomycin
CM	CarboMedics (heart valves).
CM	carboxymethyl
CM	cardiac murmur
CM	cardiac muscle
CM	cardiomyopathy
CM	carpometacarpal
CM	castrated male
CM	Caucasian male
CM	cause of death (form Latin causa mortis)
CM	cavernous malformation
CM	cell membrane
CM	center of mass
cM	centi -morgan.
cm	centimeter - 0.01 meters.
CM	centrum medianum.
CM	cerebral malaria
CM	cerebral mantle
CM	cervical mucosa or mucus
CM	Chick-Martin (coefficient)
CM	chloroquinemepacrine
CM	chondromalacia
CM	chopped meat (medium)
CM	circular muscle
CM	circulating monocyte
CM	circumferential measurement
CM	clindamycin
CM	clinical medicine
CM	clinical modification
CM	coccidioidal meningitis
CM	cochlear microphonic
CM	codling moth.
CM	combined modality
CM	common migraine
CM	complete medium
CM	complications
CM	condition median
CM	conditioned medium
CM	congenital malformation
CM	congestive myocardiopathy
CM	continuous murmur
CM	contrast medium
CM	copulatory mechanism
CM	costal margin
CM	cow's milk
Cm	curium.
CM	cytometry
CM	cytoplasmic membrane
CM	Master of Surgery (from Latin Chirurgiae Magister)
Cm	maximum clearance.
Cm	minimal concentration.
CM	narrow-diameter endosseous screw implant (form French crete manche).
cm2	square centimeter.
cm3	cubic centimeter.
CMA	Canadian Medical Association.
CMA	Certified Medical Assistant.
CMA	chronic metabolic acidosis.
CMA	cow's milk allergy.
CMA	cultured macrophages.
CMAP	compound muscle (or motor) action potential.
CMAR	cell matrix adhesion regulator.
Cmax	Cmax, maximum concentration.
CMB	carbolic methylene blue.
CMB	Central Midwives' Board.
CMB	chloromercuribenzoate.
CMBES	Canadian Medical and Biological Engineering Society.
CMC	carboxymethylcellulose.
CMC	care management continuity.
CMC	carpometacarpal.
CMC	cell-mediated cytolysis or cytotoxicity.
CMC	chloramphenicol.
CMC	chronic mucocutaneous candidiasis.
CMC	critical micellar concentration.
CMCC	chronic mucocutaneous candidiasis.
CMCJ	carpometacarpal joint.
CMCt	care management continuity across settings.
CMD	campomelic dysplasia.
CMD	camptomelic dwarfism.
CMD	cartilage matrix deficiency.
CMD	chief medical director.
CMD	childhood muscular dystrophy.
CMD	chronic myeloproliferative disease.
CMD	comparative mean dose.
CMD	congenital muscular dystrophy.
CMD	count median diameter.
cmDNA	cytoplasmic membrane-associated deoxyribonucleic acid.
CME	continuing medical education (American Medical Association On-Line CME Locator).
CMET	central mucoepidermoid tumor of the jaws.
CMF	cyclophosphamide, methotrexate, and 5-fluorouracil.
CMF	cytoxan, methotrexate and 5-fluorouracil.
CMF/VP	cyclophosphamide, methotrexate, 5-fluorouracil, vincristine, and prednisone.
CMH	Cochran-Mantel-Haenszel test.
CMHC	community mental health centers.
CMI	combined mechanical injury.
CML	chronic myelogenous leukemia.
CMML	chronic myelomonocytic leukemia.
CMO	centric relation occlusion.
CMO	Chief Medical Officer (UK).
CMP	cardiomyopathy.
CMQ	Collège des médecins du Québec.
CMR	clinical materials requisition.
CMS	circulation, motion, sensation.
CMT	Charcot-Marie-Tooth (International).
CMT	combined modality therapy.
CMT1A	Charcot-Marie-Tooth disease type 1A.
CMV	cisplatin-methotrexate-vinblastine.
CMV	control medical ventilation.
CMV	cytomegalovirus.
CMVIG	cytomegalo virus immune globulin.
CN (2-12)	cranial nerves (2 to 12).
CN	cranial nerve.
CNB	cannabinoids.
CNL	chronic neutrophilic leukemia.
CNL	constant neutral loss (scanning).
CNPA	chronic necrotizing pulmonary aspergillosis.
CNR	contrast-to-noise ratio.
CNS	central nervous system.
CNTF	ciliary neurotrophic factor.
cNTS	caudal region of nucleus tractus solitarius.
CNU-TNM	Comite Nacional Uruguayo TNM.
CNV	cranial nerve number 5.
CNX	cranial nerve number 10.
CO	carbon monoxide.
CO	cardiac output.
CO	check out.
CO	childhood-onset.
Co	cobalt.
COA	California Orthopaedic Association.
COA	Canadian Orthopaedic Association (Canadian Medical Association Affiliates).
COA	condition on admission.
COAD	chronic obstructive airways disease.
COAG	coagulation.
COD	cause of death.
COD	condition on discharge.
CO-GHD	childhood-onset growth hormone deficiency.
COGME	Council on Graduate Medical Education.
COLD	chronic obstructive lung disease.
COMP	compound.
COMSS	Council of Musculoskeletal Specialty Societies (also: AAOS Specialty Societies).
COMT	catechol-O-methyltransferase.
Con A	concavalin A.
Cong. fail.	congestive failure.
CONs	normal controls.
Cons.	consultant.
COOMR	Center for Orthopaedic Oncology and Musculoskeletal Research.
COP	center of pressure.
COPA	Certified Orthotic and Prosthetic Advocates.
COPD	chronic obstructive pulmonary disease.
COPE	Calendar of Premenstrual Experiences (scale).
COPE	chronic obstructive pulmonary emphysema.
COR	Center for Orthopaedic Research.
CORF	Carolina Orthopaedic Research Foundation.
CORR	Clinical Orthopaedics and Related Research (Journal).
COS	Canadian Oncology Society.
COS	Clinical Orthopaedic Society (AAOS Related Organizations).
COS	Colorado Orthopaedic Society.
COSTA test	compost stabilization test.
COVD	College of Optometrists in Vision Development.
COVD	College of Optometrists in Vision Development.
COX	cytochrome c oxidase.
COX-II	cyclooxygenase-II.
CP	capsid protein.
CP	cerebral palsy.
CP	chest pain.
CP	coat protein.
CP2D-A	citrate-phosphate-double-dextrose adenine.
CPAP	continuous positive airway pressure.
CPB	cardiopulmonary bypass.
CPB	competitive protein binding.
CPC	clinicopathological correlation.
CPD	cephalopelvic disproportion.
CPD	chronic peritoneal dialysis.
CPD	citrate-phosphate-dextrose.
CPE	chronic pulmonary emphysema.
CPE	complete physical examination.
CPE	cytopathic effect.
CPHL	Central Public Health Laboratory.
CPK	creatine phosphokinase.
CPM	central pontine myelinolysis.
CPM	clinical project manager.
CPM	continuous passive motion machine (center for orthopaedics and sports medicine).
CPM	counts per minute.
CPM	cyclophosphamide.
CPMA	California Podiatric Medical Association.
CPMS	chronic progressive multiple sclerosis.
CPPD	calcium pyrophosphate dihydrate.
CPR	cardiopulmonary resuscitation.
CPR	checks with previous results.
CPR	Contraceptive Prevalence Rate.
CPR	C-reactive protein.
CPS	Children's Protective Services.
CPT	Current Procedural Terminology.
CPV-2	parvovirus-2.
CPX	complete physical examination.
CPZ	cefoperazone.
CPZ	Chlorpromazine (Thorazine).
CR (1,2	and 3), leukocyte complement receptors.
CR&C	closed reduction and cast.
CR	chest radiogram.
CR	clinical records.
CR	closed reduction.
CR	complete remission/complete response.
CR	conditioned reflex.
CR	crown-rump.
CRA	Clinical Research Associate.
Crani	cranial (toward the head or proximal).
Crani	cranial (with reference to the cranium).
CRC	Cancer Research Campaign (UK).
CRC	colorectal carcinoma.
CreA	(the transcriptional repressor mediating) carbon catabolite repression in Aspergillus nidulans.
Crea	creatinine.
CREST	calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly, and telangiectasis.
CRF	case report form.
CRF	case report forms.
CRF	chronic renal failure.
CRF	corticotropin-releasing factor or hormone.
CRI	chronic renal insufficiency.
CRIS	controlled-release infusion system.
CRIT	critical hematocrit.
CRLs	cervical root lesions.
CRNA	certified registered nurse anesthetist.
CRO	cathode ray oscilloscope.
CRO	clinical research organizations.
CRO	Contract Research Organization.
CROM	cervical range of motion.
CROM	cervical range of motion.
CROME	congenital cataracts-epileptic fits-mental retardation (syndrome).
CROS	contralateral routing of signals (hearing aid).
CRP	chronic relapsing pancreatitis.
CRP	corneal-retinal potential.
CRP	coronary rehabilitation program.
CRP	C-reactive protein.
CrP	creatine phosphate.
CRP	cross-reacting protein.
CRP	cyclic AMP receptor protein.
CRPA	C-reactive protein antiserum.
CRPD	chronic restrictive pulmonary disease.
CRPF	chloroquine-resistant Plasmodium falciparum.
CRPF	closed reduction and percutaneous fixation.
CRPF	contralateral renal plasma flow.
CRPS	complex regional pain syndrome (type I and II).
CRRN	certified rehabilitation registered nurse.
CrRT	cranial radiotherapy.
CRS	Carroll rating scale for depression.
CRS	catheter-related sepsis.
CRS	caudal regression syndrome.
CRS	cervical spine radiography.
CRS	Chinese restaurant syndrome.
CRS	colon and rectum surgery.
CRS	compliance of the respiratory system.
CRS	congenital rubella syndrome.
CRS	craniosynostosis.
CRS	cryptidin-related sequence.
CRSM	cherry red spot myoclonus.
CRSP	comprehensive renal scintillation procedure.
CRST	calcinosis, Raynaud phenomenon, sclerodactyly, telangiectasia (syndrome).
CRT	cadaveric renal transplant.
CRT	capillary refill time.
CRT	cardiac resuscitation team.
CRT	cathode-ray tube.
CRT	Certified Record Techniques.
CRT	certified.
CRT	choice reaction time.
CRT	chromium release test.
CRT	complex reaction time.
CRT	computerized renal tomography.
CRT	copper reduction test.
CRT	corrected retention time.
CRT	corrected.
CRT	cortisone resistant thymocyte.
CRT	cranial radiation therapy.
crt	hematocrit.
CRTM	cartilage matrix protein.
CRTP	Consciousness Research and Training Project.
CRTT	Certified Respiratory Therapy Technician.
CRU	cardiac rehabilitation unit.
CRU	clinical research unit.
CRV	central retinal vein.
CRVF	congestive right ventricular failure.
CRVO	central retinal vein occlusion.
CRYG	gamma crystallin gene.
CRYM	crystallin, MU.
cryo	cryogenic.
cryo	cryoglobulin.
cryo	cryoprecipitate.
cryo	cryosurgery.
cryo	cryotherapy.
Cryoppt	cryoprecipitate.
crys	cryst crystal, crystaline.
CS	calf serum.
CS	campomelic syndrome.
CS	carcinoid syndrome.
CS	cardiogenic shock.
CS	caries-susceptible.
CS	carotid sheath.
CS	carotid sinus.
Cs	case.
CS	cat scratch.
CS	celiac sprue.
Cs	cell surface.
cS	centistoke.
CS	central service.
CS	central supply.
CS	cerebral scintigraphy.
CS	cerebrospinal.
CS	cervical spine.
CS	cervical stimulation.
CS	cesarean section.
Cs	cesium.
CS	chest strap.
CS	chief of staff.
CS	cholesterol stone.
CS	chondroitin sulfate.
CS	chorionic somatomammotropin.
cs	chromosome.
CS	chronic schizophrenia.
CS	cigarette smoker.
CS	citrate synthase.
CS	climacteric syndrome.
CS	clinic scheduling.
CS	clinical laboratory scientist.
CS	clinical stage.
CS	clinical status.
CS	Cockayne syndrome.
CS	complete stroke.
CS	compression syndrome.
CS	concentrated strength.
CS	conditioned stimulus.
CS	congenital syphilis.
CS	conjunctival secretion.
CS	conscious sedation.
CS	conscious, consciousness.
cs	consciousness.
CS	conservative surgery.
CS	constant spring.
CS	contact sensitivity.
CS	continue same.
CS	contrast sensitivity (test).
CS	control serum.
CS	convalescence, convalescent.
CS	coronary sclerosis.
CS	coronary sinus.
CS	corpus striatum.
CS	corticoid-sensitive.
CS	corticosteroid.
CS	crush syndrome.
CS	c-section, cesarean section.
CS	current smoker.
CS	current strength.
CS	Cushing syndrome.
CS	cycloserine.
CS	cyclosporine.
Cs	cyclosporine.
CS	IV clinical stage 4.
CSA	Canadian Standards Association.
CSA	canavaninosuccinic acid.
CSA	carbonyl salicylamide.
CSA	cell surface antigen.
CSA	chemical shift anisotropy.
CSA	chondroitin sulfate A.
CSA	chorionic somatomammotropin A.
CSA	colony-stimulating activity.
CSA	compressed spectral assay.
CSA	computerized spectral analysis.
CSA	Controlled Substances Act.
CSA	cross section area.
CSA	cyclosporine A.
CsA	cyclosporine A.
CSAA	Child Study Association of America.
CSAD	corporate services administration department.
CSAT	center for substance abuse treatment.
CSAVP	cerebral subarachnoid venous pressure.
CSB	Canadian Society for Biomechanics (Société Canadienne de Biomécanique).
csb	chromosome break.
CSB	congenital short bowel.
CSB	contaminated small bowel.
CSB	craniosynostosis, Boston type.
CSBF	coronary sinus blood flow.
CSBS	contaminated small bowel syndrome.
CSC	blow on blow (administration of small amounts of drugs at short intervals) (Fr. coup sur coup).
CSC	collagen sponge contraceptive.
CSC	corticostriatocerebellar.
CSC	cryogenic storage container.
CSCC	cutaneous squamous cell carcinoma.
CSCD	Center for Sickle Cell Disease.
CSCI	corticosterone side-chain isomerase.
CSCR	Central Society for Clinical Research.
CSCV	critical serum chemistry value.
CSD	carotid sinus denervation.
CSD	cat scratch disease.
CSD	combined system disease.
CSD	conditionally streptomycin dependent.
CSD	conduction system disease.
CSD	cortical spreading depression.
CSD	craniospinal defect.
CSD	critical stimulus duration.
CSDB	cat scratch disease bacillus.
CSDMS	Canadian Society of Diagnostic Medical Sonographers.
CSE	clinical-symptom self-evaluation (questionnaire).
CSE	cone-shaped epiphysis.
CSE	conventional spin-echo.
CSE	cross-sectional echocardiography.
C-section	cesarean section.
CSEP	cortical somatosensory evoked potential.
CSER	cortical somatosensory evoked response.
CSF	cancer family syndrome.
CSF	cerebrospinal fluid.
CSF	classical swine fever.
CSF	cold stability factor.
CSF	colony-stimulating factor.
CS-F	colony-stimulating factor.
CSF	coronary sinus flow.
CSFH	cerebrospinal fluid hypotension.
CSFP	cerebrospinal fluid pressure.
CSFR	colony-stimulating factor receptor.
CSFV	cerebrospinal fluid volume.
CSF-WR	cerebrospinal fluid-Wassermann reaction.
CSG	cholecystography, cholecystogram.
csg	chromosome gap.
CSGBI	Cardiac Society of Great Britain and Ireland.
CSGBM	collagenase soluble glomerular basement membrane.
CSH	carotid sinus hypersensitivity.
CSH	chronic subdural hematoma.
CSH	combat support (army) hospital.
CSH	cortical stromal hyperplasia.
CSHA	Canadian Study of Health and Aging.
CSHE	California Society for Hospital Engineering.
CSHRH	congenital self-healing reticulohistiocytosis.
CSII	continuous subcutaneous insulin infusion.
CSK	chronic superficial keratitis.
CSM	clinical supply management.
CSMSD	Czech Society for Metabolic Skeletal Diseases (EFFO Member Society).
CSOS	Chinese Speaking Orthopaedic Society.
CSOT	Canadian Society of Orthopaedic Technologists.
CSP	cervical spine.
CSP	cyclosporine.
C-spine	cervical spine.
CSR	central supply room.
CSR	cervical spine radiography.
CSRS	Cervical Spine Research Society (also: AAOS Specialty Societies).
CSRT	corrected sinus recovery time.
CSS	Churg-Strauss syndrome.
Cst	corticosterone.
CSV	Cordis Standard Valves.
CSW	Certified Social Worker.
CSWs	Children's Social Workers.
CT	carpal tunnel.
CT	cerebral thrombosis.
CT	cervical traction.
CT	cervical-thoracic.
CT	chemotherapy.
CT	clinical trial.
CT	computerized tomography.
CT	cor triatriatum.
CT	cytotrophoblast.
ct.	count.
CTA	clear to auscultation (about lungs).
CTAB	clear to auscultation bilaterally (about lungs).
CTACK	cutaneous T-cell attracting chemokine.
CTB	cholera toxin subunit B.
CTB	confined to bed
CTC	common toxicity criteria.
CTD	connective tissue disease.
CTE	coefficient of thermal expansion.
CTEV	congenital talipes equinovarus.
CTF	central tegmental field.
CTL	cervical, thoracic, lumbar.
CTL	cytotoxic T lymphocytes.
CTLA	cytotoxic T-lymphocyte-associated antigen-4 (CD152).
CTNB	CT-guided needle biopsy.
CTO	clinical trials office.
CTR	carpal tunnel release.
CTR	coated tube radioimmunoassay.
CTS	carpal tunnel syndrome (carpal tunnel release: sample operative report).
CTSP	called to see patient.
CTX	clinical trials exemption.
CU	cause unknown.
CU	clinical unit.
cu	cubic.
CUA	cytosine-uracil-adenine codon for leucine.
CUC	cytosine-uracil-cytosine codon for leucine.
CUD	cause undetermined.
CUG	cytosine-uracil-guanine codon for leucine.
CUU	cytosine-uracil-uracil codon for leucine.
CV	cardiac volume.
CV	cardiovascular.
CV	cervical vertebra.
CV	color vision.
CV	cresyl violet (dye used in Gram staining).
CVA	cerebrovascular accident (stroke).
CVA	costovertebral angle.
CVC	central venous catheters.
CVD	cardiovascular disease.
CVD	cerebrovascular disease
CVG	contrast ventriculography.
CVI	cerebrovascular insufficiency.
CVMP	Committee for Veterinary Medicinal Product.
CVP	central venous pressure; normal range: 0 to 9 cm of water.
CVP	cytoxan, vincristine, prednisone
CVS	cardiovascular status.
CVS	cardiovascular system.
CVS	chorionic villous sampling.
CVVH	continuous veno-venous haemofiltration.
CVVHD	continuous veno-venous hemodialysis.
CW	chest wall.
CW	crutch walking.
CWHTO	closing wedge high tibial osteotomy.
CWI	crutch walking instructions.
CWP	cell wall protein.
CWP	childbirth without pain.
CWP	coal workers' pneumoconiosis.
CX	cervix.
CX	chest x-ray.
CX	consciousness
Cx	cultures.
CXR	chest X-ray.
Cys	cysteine.
cysto	cystoscopic exam.
D (536 abbreviations)
D1 - D12	dorsal vertebrae (thoracic vertebrae).
3,4-DAP	3,4-diaminopyridine.
3-DV	three dimensional visualization.
D&C	dilatation and curettage.
D&E	dilatation and evacuation.
D&I	dry and intact (wound dressings).
D&V	diarrhea and vomiting.
d, /d	day, per day
D	aspartic acid.
D	day.
D	diopter (lens strength)
D/A	date of accident.
D/A	date of admission.
D/BMD	Duchenne and Becker muscular dystrophies.
D/C	diarrhea/constipation.
D/C	discharge.
D/C	discontinue.
D/DW	dextrose in distilled water
D/H	drug history.
D/NS	dextrose in normal saline
D/W	dextrose in water.
D/W	discussed with.
D5	anti-microphtalmia transcription factor antibody (for diagnosis of clear cell sarcoma/malignant melanoma of soft parts).
DA	degenerative arthritis.
DA	inbred strains of rats [DA(RT1a/AgB4)].
DAB	diaminobenzidine (chromogen for peroxidase-based detection systems).
DAB	dorsal abductors.
Dabs	absorbed radiation dose.
Dabs	degassed by O2 absorption (lungs).
DABS	Derogatis Affects Balance Sheet.
DABS	diazobenzene sulfonate.
DABS-AA	dimethylaminoazobenzenesulfonyl-amino acid.
DABS-Cl	dimethylaminoazobenzenesulfonyl chloride.
DAF	decay-accelerating factor (CD55) - regulates C3.
DAG	diacylglycerol.
DAISY	the dairy information system (UK).
DAN	2,4-diaminonaphthalene.
DAN	danazol.
DAN	diabetic autonomic neuropathy.
Dan-MONICA	Danish MONItoring trends in CArdiovascular diseases study.
DAN-PSS	Danish Prostate Symptom Score.
DAO	dog aorta.
DAP	Draw a Person Test.
DAP	dystrophin associated protein.
DAPC	dystrophin-associated protein complex.
DAPK	death-associated protein kinase.
DAP-Kinase	death-associated protein kinase.
DAPT	diphtheria, acellular pertussis, and tetanus toxoids.
DAR	double-antibody radioimmunoassay.
DAT	dementia of the Alzheimer's type.
DAT	diet as tolerated.
DAT	direct antibody testing.
DATT	Defense Attaché.
DAV	dapple apple viroid.
DB	date of birth.
db	decibel.
DB	disability.
DBI	diazepam binding inhibitor.
DBM	demineralized bone matrix.
DBP	demineralized bone powder.
DBP	diastolic blood pressure.
DBP	dibutyl phthalate.
DBPCFC	double-blind placebo controlled food challenge.
DBSC	double-breath, single cycle.
DBW	deficit birthweight.
DBW	desirable body weight.
DBW	diabetic black women.
DBW	dosing body weight.
DBW	dry body weight.
DC&B	dilation, curettage and biopsy.
DC	dendritic cells.
DC	direct current.
DC	disc, discharged, discontinue.
dc	discontinue.
DC	doctor of chiropractic.
DCA	directional coronary atherectomy (for coronary ostial lesions).
DCBE	double-contrast barium enema.
DCC	dextran-coated charcoal.
DCC	direct current contershock.
DCGF	dry corn gluten feed.
DCH	2,3-dicyanohydroquinone.
DCH	Day-case haemorrhoidectomy.
DCH	deep cerebral hemorrhages.
DCH	delayed cutaneous hypersensitivity.
DCH	diffuse chorioamnionic hemosiderosis.
DCH	diffuse choroidal hemangiomas.
DCh	dorsochiasmatic area.
DCH	double-crush hypothesis.
DCIS	ductal carcinoma in situ - type of breast cancer.
DCM	dilated cardiomyopathy.
DCP	des-g-carboxy prothrombin, specific for HCC (hepatocellular carcinoma).
DCS	decompression sickness.
DCT	distal convoluted tubule.
DD	discharge diagnosis.
DD	dry dressing.
DDAVP	desmopressin acetate.
DDAVP	desmopressin test for urine osmolality.
ddC	zalcitabine.
DDD	degenerative disk disease.
DDH	developmental dysplasia of the hip (case report).
ddI	didanosine.
DDP	diamminedichloroplatinum.
DDS	Doctor of Dental Surgery.
DDT	chlorphenotane.
DDx	differential diagnosis.
DE	delayed excitation.
DEA	diethylamine.
DEA	Drug Enforcement Agency.
DEAE	diethylaminoethyl.
DEC	deceased; decrease
DEF	defecation.
DEF	deferred.
DEF	deficient.
DEG	degeneration.
Derm	dermatology
DES	describe.
DES	desflurane.
DES	diethylstilbestrol.
DET	determine
DEV	deviation.
DEXA	dual energy x-ray absorptiometry (accuDEXA(tm) bone densitometer by Schick Technologies).
DF	dorsiflexion.
DFA	direct fluorescent antibody test.
DFI	disease free interval.
DFID	British Department of International Development (Formerly ODA).
DFMO	DL-alpha-difluoromethylornithine.
DFS	disease free survival (time without disease prior to relapse or last follow-up).
DFSP	dermatofibrosarcoma protuberans.
DFX	desferrioxamine.
DGC	differentiated type gastric carcinoma.
DGC	dystrophin-glycoprotein complex.
DGCR	DiGeorge chromosomal region.
DGGE	denaturing gradient gel electrophoresis.
DGGE	denaturing gradient gel electrophoresis.
DGI	disseminated gonococcal infection.
DGM	duodenal gastric metaplasia.
DGR	duodenogastric reflux.
DGS	DiGeorge syndrome.
DH	dermatitis herpetiformis.
DHA	docosahexanoic acid.
DHEA	dehydroepiandrosterone.
DHEAS	dehydroepiandrosterone sulfate.
DHEA-ST	dehydroepiandrosterone sulfotransferases.
DHF	dorsi-hyperflexion.
DHHS	Department of Health and Human Services.
DHL	diffuse histocytic leukemia.
DHS	dynamic hip screw.
DI	date of injury.
DI	diabetes insipidus.
diag	diagnosis, diagnostic.
DIC	disseminated intravascular coagulation.
Dict.	dictation.
DIF	direct immunofluorescence.
DIFF	diff, differential blood count.
DIL	dilated.
DIL	dilute.
DIM	diminished.
Dind	indicative radiation dose.
DIP	desquamative interstitial penumonitis.
DIP	distal interphalangeal joints.
DIP	distal interphalangeal.
DIPJ	distal interphalangeal joint.
DIPP	diisopropyl phosphate.
dIPSPs	depolarizing inhibitory postsynaptic potentials.
DIS	disabled.
DIS	disease.
DISH	diffuse idiopathic skeletal hyperostosis.
DISI	dorsal intercalate segment instability.
DISL	dislocate; dislocation.
DISP	disposition.
DIST	distal.
DIST	distended.
DIT	diiodotyrosine.
DIW	dextrose in water.
DJD	degenerative joint disease.
DKA	diabetic ketoacidosis.
DKA	did not keep appointment.
DKB	deep knee bends.
dl	deciliter - 0.01 liters (100 ml).
DL	dual lumen.
DLA	dorsolateral area.
DLC	diamond-like carbon (coatings).
DLCL	diffuse large cell lymphoma.
DLCO	diffusing capacity of the lung for carbon monoxide.
DLDH	dementia lacking distinctive histopathology.
DLE	discoid lupus erythematosus.
DLI	donor lymphocyte infusion.
DLO	d-limonene 1,2-epoxide.
DLO	dorsolateral outflow.
DLO	octopamine-IR.
DLS	date last seen.
D-LST	drug lymphocyte stimulation test.
DM	diabetes mellitus.
DM	diastolic murmur.
DM1	myotonic dystrophy gene.
DMA	dog mesenteric artery.
DMARD	disease modifying antirheumatic drugs.
DMC	Data Monitoring Committee.
DMD	3-(s)-[(dodecyloxycarbonyl)methyl]-1,4-dioxane-2,5-diones.
DMD	daily maintenance dose.
DMD	delayed mental development.
DMD	depression and manic depression.
DMD	desmethyldiltiazem.
DMD	desmethyldoxepin.
DMD	diastolic myocardial dysfunction.
DMD	dietary management of diarrhea.
DMD	differential metabolic display.
DMD	differentially methylated domain.
DMD	digitoxigenin monodigitoxoside.
DMD	dimethadione.
DMD	dimethyldioxirane.
DMD	discontinuous molecular dynamics.
DMD	disease modifying drug
DMD	disseminated malignant disease.
DMD	disseminated mycobacterial disease.
DMD	Doctor of Dental Medicine.
DMD	dorsal medullary depressor area.
DMD	Drug Misuse Databases.
DMD	drusen-related macular degeneration.
DMD	dry matter digestibility.
DMD	Duchenne muscular dystrophy.
DMD	Dynia-Majan-Drdlicka factor
DMD	Dystonia Musculorum Deformans
DMD	dystrophin.
DMG	dimethylglycine.
DMI	Desipramine (Norpramin).
DMI	dry matter intake.
DMN	dorsal motor nucleus.
DMP	data management plan.
DMR	direct myocardial revascularization.
DMS or MSM	dimethylsulfone or methylsulfonylmethane (CH3SO2CH3).
DMSO	dimethyl sulfamethoxazole (cryoprotective used to store cells from patients undergoing autologous transplantation).
DMSO	dimethylsulfoxyde.
DMV	dog mesenteric vein.
DMV	dorsal metatarsal veins.
DN	double negative.
DNA	deoxyribonucleic acid.
DNA	did not attend (clinic).
DNC	dominant-negative complementation.
DND	died a natural death.
DNI	do not intubate.
DNI/DNR	do not intubate, do not resuscitate.
DNKA	did not keep appointment
dNM	1-deoxynojirimycin.
dnm	daunosamine.
DNM	delayed nonmatching-to-sample.
DNM	descending necrotizing mediastinitis.
DNM	desmoplastic neurotropic melanoma.
DNM	dominant negative mutant.
DNR	daunorubicin.
DNR	do not resuscitate.
DNR	dorsal nerve root.
DNS	did not show for appointment.
DO	doctor of osteopathy.
DO	dorsal outflow.
DOA	day of admission.
DOA	dead on arrival.
DOB	date of birth.
DOC	deoxycholate.
DOC	deoxycorticosterone.
DOC	died of other causes.
DOD	date of death.
DOD/OSD	Department of Defense/Office of the Secretary of Defense.
DOE	date of examination.
DOE	Department of Energy.
DOE	dyspnea on exertion.
DOES	disorder of excessive somnolence (narcolepsy).
DOI	date of injury.
DOJ	Department of Justice.
DON	demyelinating optic neuritis.
DOS	date of surgery.
DOS	Department of State.
DOT	date of transfer.
DOT	Department of Transportation.
DP	deep pulse.
DP	diastolic pressure.
DP	distal pulses.
DP	dorsalis pedis pulse.
DP	dorsalis pedis.
DPC	desaturated phosphatidylcholine.
DPC	desaturated phosphatidylcholine.
DPC	diethypyrocarbonate.
DPC	diethypyrocarbonate.
DPC	direct patient care.
DPC	direct patient care.
DPC	disseminated peritoneal cancer.
DPC	distal palmar crease.
DPC	distal palmar crease.
DPC	delayed primary closure.
DPD	diffuse pulmonary disease.
dpdt	time derivative of left ventricular pressure.
DPDT-SP	D-Pro2-D-Trp7,9-SP.
DPGN	diffuse proliferative glomerulonephritis.
DPH	diphenylhydantoin.
DPKO	Department of Peacekeeping Operations.
DPL	diagnostic peritoneal lavage.
DPM	dipyridamole.
DPM	direct photometric method.
DPM	disintegrations per minute.
DPM	Doctor of Podiatric Medicine.
DPM	dog pancreas microsomal membranes.
DPPC	dipalmitoyl phosphatidylcholine.
DPT	diphtheria, pertussis, tetanus immunization.
DPTA	diethylenetriaminepentaacetic acid.
DPV	diameter of portal vein.
DR	delivery room.
DR	diabetic retinopathy.
DR	diagnostic radiology.
DR	dorsal root.
dr	dram.
DR	dressing.
DR	HLA DR antigen.
DRE	digital rectal examination.
DREZ	dorsal root entry zone.
DRG	diagnosis-related groups.
DRG	dorsal root ganglion.
DRG/PPS	diagnosis-related-group/prospective-payment system.
DRN	disaster relief nurse.
Drng	drainage.
Drsg	dressing.
DRSP	drospirenone.
DRT	daily rumination time.
DRT	delay-reduction theory.
DRT	Developmentally Regulated EPH-related Tyrosine kinase gene.
DRT	deviation ratio topography.
DRT	device readiness test.
DRT	device-related thrombosis.
DRT	dexamethasone-resistant thymocytes.
DRT	Diagnostic-Rhyme Test.
DRT	dichotic rhyme task.
DRT	Diet Readiness Test.
DRT	diffraction Radon transform.
DRT	diffuse rhythmic theta (waves).
drt	diffusional response time.
DRT	digestion-related thermogenesis.
DRT	discriminative reaction time.
DRT	discriminative response task.
DRT	disjunctive reaction time.
DRT	DNA-damage-repair/toleration activities.
DRT	dopamine replacement therapy.
DRt	dorsal reticular nucleus.
DRT	dorsal root terminals.
DRT	dorsal roots.
DRT	Drug resistant typhoid fever.
DRT	dynamic regional thresholding.
dRT-PCR	differential RT-PCR.
DRUDP	Division of Reproductive and Urologic Drug Products.
DRUJ	distal radioulnar joint.
DRUL	distal radioulnar ligaments.
DS	diagnostic sensitivity.
DS	Durie-Salmon stage.
DSA	defibrillation systems analyser.
DSA	digital substraction angiography.
DSA	digital subtraction angiography.
DSC	differential scanning calorimetry.
DSCA	Defense Security Cooperation Agency.
DSD	discharge summary dictated.
DSD	dry sterile dressing.
DSE	disposable smoke evacuator.
DSG	dressing.
DSG	dry sterile gauze.
DSH	domestic shorthaired cat.
DSHEA	Dietary Supplement Health and Education Act.
DSK-TNM	Deutschsprachiges TNM-Komitee.
DSM	Diagnostic and Statistical Manual.
DSP	decreased sensory perception.
D-spine	dorsal spine (thoracic spine).
DSR	Dahl salt-resistant rats.
DSs	Dahl salt-sensitive.
DSS	decision support system.
DSS	Dejerine-Sottas Syndrome.
DSS	dengue shock syndrome.
DSS	Department of Social Services.
DSS	dextrane sulfate sodium.
DSS	digit symbol subtest.
DSS	distal splenorenal shunt.
DSS	disuccinimidyl suberate.
DSS	double simultaneous stimulation.
DSSD	drug safety and surveillance management.
DST	dexamethasone suppression test.
DST	distal straight tubule.
DSV	Deep Submergence Vehicle.
DSV	dense-cored vesicles.
DSV	desulfoviridin.
DSV	diameter of splenic vein.
DSV	diastolic septal velocity.
DSV	diethylamine shift value.
DSV	diffuse sclerosing variant of papillary thyroid carcinomas.
DSV	digital subtraction venacavography.
DSV	digital subtraction venography.
DSV	Digitaria streak virus.
DSV	DNA sequence variations.
DSV	dog saphenous vein.
DSV	Drosophila S virus.
DSV	Dual Switch Valves.
DT	date and time.
DT	date of treatment.
DT	delirium tremens.
DT	due to.
DT	duration tetany.
DTP	diphtheria and tetanus toxoids with pertussis (killed, whole organism).
DTP	distal tingling on percussion (over the site of a nerve, a.k.a. Tinel's sign or Hoffman-Tinel sign).
DTP	distal tingling on percussion (Tinel's sign)
DTR	deep tendon reflex/es.
DTS	diametral tensile strength.
DTZ	diltiazem.
DU	diagnosis undetermined.
DU	duodenal ulcer.
DUB	dysfunctional uterine bleeding.
Dus	differential upstream sequence.
DUS	distinctness, uniformity and stability (test for crops in UK).
DUS	divergent unilateral strabismus.
DUS	Doppler ultrasound.
DUs	drug users.
DUs	duodenal ulcers.
DUS	Dusseldorf.
dus	unknown gene tentatively designated "dus" for dut suppressor.
DV&D	Diploma in Venereology and Dermatology.
dv	double vibrations.
DVA	developmental venous anomaly.
DVA	distance visual acuity.
DVA	duration of voluntary apnea.
DVA	vindesine.
DVB	divinylbenzene.
DVC	divanillylcyclohexane.
DVCC	Disease Vector Control Center.
DVD	dissociated vertical deviation.
dVDAVP	1 -deamine-4-valine-D-arginine vasopressin.
DVE	duck virus enteritis.
DVH	Diploma in Veterinary Hygiene.
DVH	Division for the Visually Handicapped.
DVH	dose volume histogram.
DVI	AV sequential (pacemaker).
DVI	deep venous insufficiency.
DVI	diastolic velocity integral.
DVI	digital vascular imaging.
DVI	Doppler velocity index.
DVIS	digital vascular imaging system.
DVIU	direct-vision internal urethrotomy.
DVL	deep vastus lateralis.
DVM	digital voltmeter.
DVM	Doctor of Veterinary Medicine.
DVMS	Doctor of Veterinary Medicine and Surgery.
DVN	dorsal vagal nucleus.
DVP	daunorubicin, vincristine and prednisolone.
DVP	deep vascular plexus.
DVP	defective viral particles.
DVP	diastolic peak velocity prosthetic flow.
DVP	diastolic ventricular pressure.
DVP	digital video plotter.
DVP	direct venipuncture.
DVP	distal vein patch.
DVP	distributed volume pair.
DVP	divalproex sodium.
DVP	divinylporphyrin.
DVP	domestic violence programs.
DVP	Doppler velocity profile.
DVP	dorsal vein of the penis.
DVP	draining vein pressure.
DVP	ventriculo-peritonial derivations.
DVR	digital vascular reactivity.
DVR	Doctor of Veterinary Radiology.
DVR	double valve replacement.
DVR	double ventricular response.
DVS	Doctor of Veterinary Science.
DVS	Doctor of Veterinary Surgery.
DVSc	Doctor of Veterinary Science.
DVT	deep venous thrombosis.
DW	daily weight.
DW	deionized water.
DW	dextrose in water.
DW	distilled water.
DW	doing well.
DW	dry weight.
dw	dwarf (mouse).
DWA	died from wounds by the action of the enemy.
DWD	died with disease.
DWDL	diffuse well-differentiated lymphocytic lymphoma.
DWI	driving while impaired; driving while intoxicated.
DWM	Dandy-Walker malformation.
DWR	delayed word recall.
DWS	Dandy-Walker syndrome.
DWS	disaster warning system.
DWT	dichotic word test.
DWT	discrete wave transform.
dwt	pennyweight.
DWW	diabetic white women.
DX	dextran.
DX	dicloxacillin.
DX	discharged.
DX	disease.
Dx	dx, diagnosis.
DXA	dual energy X-ray absorptiometry.
DXD	discontinued.
DXM	dexamethasone.
DXM	dextromethorphan.
DXP	digital x-ray prototype.
DxPLAIN	Massachusetts General Hospital's expert diagnostic system.
DXPNET	Digital X-Ray Prototype Network.
DXR	deep x-ray.
DXR	doxorubicin.
DXRT	deep x-ray therapy.
DXT	deep x-ray therapy.
DXT	dextrose.
dXTP	deoxyxanthine triphosphate.
DY	dense parenchyma.
Dy	dysprosium.
dy	dystrophia muscularis (mouse).
dyn	dynamic; dynamometer; dyne.
DYS	dysautonomia.
dysp	dyspnea.
DZ	diazepam.
dz	disease.
DZ	dizygotic.
DZ	dizziness.
dz	dozen.
dZ	impedance change.
DZM	dorsal zone of membranelle.
DZP	diazeparn.
DU-24	avian cell line.
DUS-3	avian rho0 cell line.
DSV	dithranol-2% salicylic acid-white soft vaseline.
DABS-L-Met-dl-(O)	4-dimethylaminoazobenzene-4'-sulfonyl-L-methionine-dl-sulfoxide.
D5%DW	dextrose 5% in distilled water
D5%NS	dextrose 5% in normal saline
D5LR	dextrose 5% with lactated ringers
D5W	5% dextrose in water.
D1OW	10% aqueous dextrose solution.
DLT	dose limiting toxicity - determined by phase 1 studies.
DMT1	divalent metal transporter 1.
3DCT	three dimensional (surface) CAT scan reconstruction images.
3D-MRA	three-dimensional magnetic resonance angiography.
DM2	myotonic dystrophy gene 2 (linked to chromosome 3q).
DTSSP	3,3'-dithiobis(succinimidyl propionate).
DMPK	dystrophia myotonica-protein kinase (gene on chromosome 19q).
E (398 abbreviations)
4E	four-plus edema.
E coli	Escherichia coli.
E&A	evaluate and advise.
E*	lesion on the erythrocyte cell membrane at the site of complement fixation.
E	air dose.
E	average beta energy.
e	base of natural logarithms, approximately 2.7182818285; egg transfer; ejection; electric charge; electron; elementary charge; exchange.
E	cortisone (compound E).
E	each.
E	eating.
E	edema.
E	elastance.
E	electric charge.
E	electric field vector.
E	electrode potential.
E	electromotive force.
E	electron.
E	embyro.
E	emmetropia.
E	encephalitis.
E	endangered (animal).
E	endogenous.
E	endoplasm.
E	enema.
E	energy.
E	Entamoeba.
E	enterococcus.
E	enzyme.
E	eosinophil.
E	epicondyle.
E	epinephrine.
E	error.
E	erythrocyte.
E	erythroid.
E	erythromycin.
E	Escherichia.
E	esophagus.
E	ester.
E	estradiol.
E	ethanol.
E	ethyl.
E	examination.
E	exhalation.
E	expectancy (wave).
E	expected frequency in a cell of a contingency table.
E	experiment, experimenter.
E	expiration.
E	expired air.
E	exposure.
E	extract, extracted, extraction.
E	extraction fraction.
E	extralymphatic.
E	eye.
E	glutamic acid.
E	internal energy.
E	involvement of a single extranodal site (in Hodgkin lymphoma).
E	kinetic energy.
E	mathematical expectation.
e	negative electron.
E	redox potential.
E	stereodescriptor to indicate the configuration at a double bond (Ger. entgegen opposite).
E	unit (Ger. Einheit)..
E/A	emergency admission.
E/G ratio	ratio of erythroid to granulocytic precursors.
e+	positron.
E0	electric affinity.
E0	standard electrode potential.
E1	estrone.
E2	17-estradiol.
E3	estriol.
E4	estetrol.
ea	each.
EA	early antigen (in EBV-IM).
EA	educational age.
EA	egg albumin.
EA	electric affinity.
EA	electrical activity.
EA	electroacupuncture.
EA	electroanes thesia.
EA	electropbysiological abnormality.
EA	embryonic antibody.
EA	endocardio graphic amplifier.
EA	Endometriosis Association.
EA	endurance athletes.
EA	enteral alimentation.
EA	entero anastomosis.
EA	enzymatically active.
EA	epiandrosterone.
EA	erythrocyte antibody.
EA	erythrocyte antiserum.
EA	esophageal atresia.
EA	estivo-autumnal.
EA	ethacrynic acid..
Ea	kinetic energy of alpha particles.
EAA	electroacupuncture analgesia.
EAA	Epilepsy Association of America.
EAA	essential amino acid.
EAA	ex trinsic allergic alveolitis.
EAA	excitatory amino acid.
EAAC	excitatory amino acid carrier.
EAB	elective abortion; Ethics Advisory Board.
EABV	effective arterial blood volume.
EAC	Ehrlich ascites carcinoma.
EAC	electroacupuncture.
EAC	epithelioma adenoides cysticum.
EAC	erythema annulare centrifugum.
EAC	erythrocyte, antibody, complement.
EAC	external auditory canal.
EACA	epsilon-aminocaproic acid.
EACD	eczematous allergic contact dermatitis.
EACH	essential access community hospital.
EACR	European Association for Cancer Research.
EACs	endocrine-active chemicals.
EAD	early afterdepolarization; extracranial arterial disease.
EA-D	early antigen, diffuse.
E-ADD	epileptic attentional deficit disorder.
EADS	early amnion deficit spectrum or syndrome.
EAE	experimental allergic encephalomyelitis; experimental autoimmune encephalitis.
EAHP	European Association for Hematopathology.
EAN	experimental allergic (autoimmune) neuritis).
EANO	European Association for NeuroOncology.
EAS	emergent abdominal sonography.
EB	epidermolysis bulosa.
EBA	epidermolysis bullosa acquisita.
EBCT	electron-beam computed tomography.
EBER	early EBV mRNA.
EBL	enzootic bovine leucosis.
EBL	estimated blood loss.
EBM	evidence-based medicine.
EBMT	European Group for Blood and Marrow Transplantation.
EBN	Endemic Balkan nephropathy.
EBNA	Epstein-Barr nuclear antigen.
EBV	Epstein-Barr virus.
EBV-IM	Epstein-BArr virus infectious mononucleosis.
EC	Enzyme Commission of the International Union of Biochemistry.
Eca 109	human esophageal epithelial cancer cell line.
ECA	Echocontrast agents.
ECA	ecternal/extracranial carotid artery.
ECA	electrical control activity.
ECA	endometrial cryoablation.
ECA	enterobacterial common antigen.
ECA	Epidemiological Catchment Area.
Eca	Erwinia carotovora subsp. atroseptica (a phytopathogen).
ECA	external carotid artery.
ECA	extra-cardiac structural or karyotypic anomalies.
ECBO virus	enteric cytopathogenic bovine orphan virus.
ECC	early childhood caries.
ECC	endocervical cell collector.
ECC	extracorporeal circulation.
ECCE	extracapsular cataract extraction.
ECF	extended care facility.
ECF	extracellular fluid.
ECFV	extracellular fluid volume.
ECG	electrocardiogram (also EKG).
ECH	enoyl CoA hydratase.
ECHO	echocardiogram.
ECM	extracellular matrix.
ECMO	extracorporeal membrane oxygenation.
ECOMOG	Economic Community of West African Monitoring Group.
EcoRI	restriction enzyme from Escherichia coli RY 13.
ECOWAS	Economic Community of West African States.
ECRB	extensor carpi radialis brevis.
ECRL	extensor carpi radialis longus.
ECT	electroconvulsive therapy.
ECTR	endoscopic carpal tunnel release.
ECU	extensor carpi ulnaris.
ECWSs	endoluminal colonic wall stents.
ED	edema.
ED	emergency department.
ED	extradomain (the type III unit of fibronectin).
EDA	Excess Defense Articles.
EDAC	early detection of alcohol consumption.
EDC	estimated or expected date of confinement.
EDC	extensor digitorum communis.
EDDI	Education for Development and Democracy Initiative.
EDI	electronic data interchange.
EDIR	emergency drug identification record.
EDL	extensor digitorum longus.
EDM	extensor digitis minimi.
EDMR	electrically detected magnetic resonance.
EDRF	endothelium-derived relaxing factor.
EDS	Ehlers-Danlos syndrome.
EDS	external defibrillation system.
EDSTAC	Endocrine-Disrupter Screening and Testing Advisory Committee.
EDTA	ethylenediaminetetraacetic acid.
EDV	end diastolic velocity.
EDX	electrodiagnostic.
EE	energy expenditure.
EE	ethinyl estradiol.
EEG	electroencephalogram.
EENT	ear, eye, nose and throat.
EES	Ethicon Endo-Surgery.
EEXOT	Hellenic Orthopaedic Association.
EF	(peptide) elongation factor.
EF	ectopic focus.
EF	edema factor.
EF	ejection fraction.
EF	elastic fibril.
EF	electric field.
EF	elongation factor.
EF	embryo fibroblast.
EF	embryo-fetal.
EF	emergency facility.
EF	encephalitogenic factor..
EF	endothoracic fascia.
EF	endurance factor.
EF	eosinophilic fasciitis.
EF	epithelial focus.
EF	equivalent focus.
EF	erythroblastosis fetalis.
EF	erythrocyte fragmentation.
EF	exposure factor.
EF	extended field.
EF	extrafine.
EF	extrinisic factor.
EF-2	initiation factor in the translational step of viral replication.
EFA	essential fatty acids.
EFFAS	European Foot and Ankle National Societies.
EFFO	European Foundation for Osteoporosis and Bone Disease.
EF-G	elongation factor G.
EFORT	European Federation of National Associations of Orthopaedics and Traumatology.
EFS	event free survival - time from diagnosis to defined events (e.g. relapse or death).
EGA	error grid analysis.
EGA	estimated gestational age.
EGCs	early gastric carcinomas.
EGD	esophagogastroduodenoscopy.
EGDS	esophagogastric devascularization with splenectomy.
EGE	eosinophilic gastroenteritis.
EGF	epidermal growth factor.
EGFP	enhanced green fluorescent protein.
EGS	ethylene glycol bis succinimidyl succinate.
EHBA	extrahepatic biliary atresia.
EHBP	extrahepatic biliary passages.
EHEC	enterohemorrhagic Escherichia Coli.
EHL	extensor hallucis longus.
EHS	European Hip Society.
EIC	endometrial intraepithelial carcinogenesis.
EIC	extensive intraductal component.
EICESS	European Intergroup Ewing's Sarcoma Study.
EIN3	ethylene-insensitive3 (is a transcription factor that works in the ethylene signaling pathway in Arabidopsis).
EJ	elbow jerk.
EJC	European Journal of Cancer.
EJHS	Electronic Journal of Hand Surgery.
EJO	Electronic Journal of Orthopaedics.
EJS	Electronic Journal of Surgery and Specialistic Medicine.
EKG	electrocardiogram (also ECG).
EL	elbow.
EL	endoscopic ligation.
ELAM-1	E-selectin adhesion molecule (on endothelial cells).
ELISA	enzyme-linked immunosorbent assay.
Elix	elixir.
ELOS	estimated lenght of stay.
EM	electron microscope, emmetropia.
EMB	eosin methylene blue agar.
EMC	electromagnetic compatibility.
EMCAP	World Bank's Economic Management Capacity Project.
EMDR	Eye Movement Desensitization and Reprocessing.
EMEA	European Agency for the Evaluation of Medicinal Products.
EMG	electromyogram, electromyography.
EMH	extramedullary hematopoiesis.
EMM	epithelial malignant mesotheliomas.
EMP	Embden-Meyerhof pathway.
EMR	Electronic Medical Records.
EMS	electrical muscle stimulation.
EMS	emergency medical service.
EMST	Emergency Management of Severe Trauma.
EMT	emergency medical technician.
EMTALA	Emergency Medical Treatment and Active Labor Act.
EMUO	early morning urine osmolality (evaluating urine concentration).
End	endothelial cells.
ENG	electronystagmography.
ENI	Bureau for Europe and the New Independent States .
ENSG	European Neuroblastoma Study Group.
ENT	ear, nose, and throat.
EOA	Eastern Orthopaedic Association.
EOA	Egyptian Orthopaedic Association.
EOI	European Osteosarcoma Intergroup.
EOM	extraocular movements.
EOMI	extraocular movements intact.
EORS	European Orthopaedics Research Society.
EORTC	European Organisation for Research and Treatment of Cancer.
Eos	eosin, eosinophil.
EP	ectopic pregnancy.
EP	emergency physician.
EP	endogenous pyrogens.
EP	European Pharmacopoeia.
EPA	Environmental Protection Agency; controls the use of pesticides and monitors water pollution in general.
EPB	extensor pollicis brevis.
EPC	egg phosphatidylcholine.
EPDM	ethylene propylene diene rubber.
EPEC	enteropathogenic Escherichia coli.
EPI	epinephrine.
Epi	epithelial cells.
EPL	extensor pollicis longus.
EPOC	excess post-exercise oxygen consumption.
EPOS	European Pediatric Orthopaedic Society.
EPS	exophtalmos-producing substance.
EPS	extrapyramidal symptoms.
EPSD	Early Periodic Screening Detection.
EPSP	excitatory postsynaptic potential.
EPSPS	5-enolpyruvylshikamate-3-phosphate synthetase.
EPU	epidermal proliferative unit.
EPV	Epstein-Barr virus.
ER	emergency room.
ER	endoplasmic reticulum.
ER	external rotation.
ER/PR	estrogen/progesterone.
ERA	electrical response activity.
ERA	estradiol receptor assay.
ERA	evoked response audiometry.
ERAD	endoplasmic-reticulum-associated degradation.
ERCP	endoscopic retrograde cholangiopancreatography.
ERE	external rotation in extension.
ERF	external rotation in flexion.
ERP	effective refractory period.
ERT	empathy response task.
ERT	endurance run test.
ERT	enzyme replacement therapy.
ERT	estrogen replacement therapy.
ERT	external radiation therapy.
Ery	erythrocytes.
ES	electrical stimulation.
ES	endoscopic sclerotherapy.
ES	enzymatic spectrometric method.
ES	enzyme-substrate complex.
ESAF	Enhanced Structural Adjustment Facility.
ESB	European Society of Biomechanics.
ESD Dus 2	a new rare allele for esterase D (ESD) described in a family from Dusseldorf.
ESD	esterase D.
ESDS	European Spinal Deformities Society.
ESF	Economic Support Fund.
ESF	European Science Foundation.
ESFAS	European Society of Foot and Ankle Surgeons.
ESI	electrospray ionization.
ESI	epidural steroid injection.
ESI	European Surgical Institute.
ESO	European School of Oncology
EspA	E. coli secreted protein A.
EspB	E. coli secreted protein B.
EspD	E. coli secreted protein D.
ESPD	electrosensitive protective device.
ESPD	endogenous digoxin-like substance.
ESPGHAN	European Society of Paediatric Gastroenterology, Hepatology, and Nutrition.
ESR	electron spin resonance.
ESR	erythrocyte sedimentation rate.
ESRD	end stage renal disease.
ESRF	end stage renal failure.
ESS	endometrial stromal sarcoma.
ESS	European Spine Society.
ESSKA	European Society for Sports Medicine, Knee Surgery and Arthroscopy.
EST	electroshock therapy.
EST	estrogen sulfotransferases.
EST	expressed sequence tag.
ESTRO	European Society for Therapeutic Radiation and Oncology.
ESWL	extracorporeal shock wave lithotripsy.
et	and.
ET	ejection time.
ET	esotropia.
ET	essential thrombocythemia.
ET	eustachian tube(s).
ET	exercise training.
ET-1	endothelin-1.
ETA	estimated time of arrival.
ETCO2	end tidal CO2.
ETD	estimated time of departure.
ETF	eustachian tube function.
ETI	endotracheal intubation.
Etio	etiology.
etiol.	etiology
EtO	ethylene oxyde.
ETOH	ethanol - alcohol
ETS	environmental tobacco smoke.
ETT	endotracheal tube.
ETT	exercise tolerance test.
ETX	ethosuximide.
EU	European Union.
EUA	examination under anesthesia.
EU-NRLs	European Union National Reference Laboratories.
EUP	eupneic.
EUS	endoscopic ultrasound.
EVA	economic value added.
EVA	electric vacuum aspiration.
EVA	ethylene-vinylacetate.
EVAL	ethylene-vinyl alcohol.
eval.	evaluation.
EVH	enabled/VASP homology.
EVH	endoscopic vein harvest.
EVH	esophageal variceal hemorrhage.
EVH	eucapnic voluntary hyperventilation.
EX	exacerbate; examination; excision.
EX	exercise.
EX	extension.
Exam	examination.
EXC	excellent; except; exchange; excision.
EXP	expand; explain.
ExT	exfoliating toxin.
EXT	extend; external; extremity
ext	external.
F (255 abbreviations)
F & E	flexion & extension.
F(hor)	horizontal ground reaction force.
F	Fahrenheit degrees.
F	female.
F	phenylalanine.
f.b.	foreign body
F.H.	family history.
F/H	family history.
F/I	fever due to infection.
F/U	follow-up.
F7	factor VII gene on chromosome 13q34-qter.
FA	failed appointment.
FA	Fanconi's anemia.
FA	fluorapatite.
FA	forearm.
FAA	Federal Aviation Agency .
FAAN	Federal Airport Authority of Nigeria.
Faap(s)	fatty acid activation protein(s).
FAAP	F-actin image analysis program.
FAAP	Fellow of the American Academy of Pediatrics.
FAAP	free amino acid pool.
FAAP	functional activity of plasminogen activators in plasma.
FAAP	N-formylaminoantipyrine.
FAAU	functional activity of plasminogen activators in urine.
FAB	French American and British classification scheme for leukemia.
FABERE	flexion, abduction, external rotation and extension.
FABP	fatty acid binding protein.
FACC	Fellow of the American College of Cardiology.
FACES-II	Family Adaptability and Cohesion Evaluation Scales, Version II.
FACFAS	Fellow of the American College of Foot and Ankle Surgeons.
FACOG	Fellow Of The American College Of Obstetrics And Gynecology.
FACOI	Fellow of the American College of Osteopathic Internists.
FACP	Fellow of the American College Of Physicians.
FACS	Fellow of the American College Of Surgeons.
FACS	fluorescence-activated cell sorter.
F-actin	filamentous actin.
FACU	Federal Agricultural Coordinating Unit.
FAD	flavin adenine dinucleotide.
FADIR	flexion, adduction and internal rotation.
FADIRE	flexion, adduction, internal rotation and extension.
FAI	Foot and Ankle International (Journal).
FALT	follicle-associated lymphoid tissue.
FAMS	functional assessment of multiple sclerosis.
FANA	fluorescent antinuclear antibody test (see also ANA).
FAO	United Nations Food and Agricultural Organization.
FAOP	Florida Association of Orthotists and Prosthetists.
FAP	familial adenomatous polyposis.
FAQ	frequently asked questions.
FAS/ITP	Foreign Agriculture Service/International Trade Policy.
FASIG	Foot and Ankle Special Interest Group.
FAWC	Farm Animal Welfare Concil (UK).
FB	Fb, fingerbreadth.
FB	foreign body.
FBC	full blood count.
FBD	Familial British dementia.
FBD	feather and beak disease (a bird disease).
FBD	fibrin binding domain.
FBD	fibrocystic breast disease
FBD	Flow-BOLD (blood oxygenation level-dependent) -Dependence.
FBD	food-borne diseases.
FBD	forearm bone density.
FBD	functional bowel disorder/distress.
FBD	functional breathing disorder.
FBI	Federal Bureau of Investigations.
F-BKP	femoral-below-knee-popliteal bypasses.
FBP	filtered back-projection.
FBS	fasting blood sugar.
FBS	Finnish Bone Society (EFFO Member Society).
FC	finger counting.
FCA	fracture, complete, angulated.
FCAPM	formal college approved postgraduate meeting.
FCC	Federal Communications Commission.
FCC	fracture, complete, comminuted; fracture, compound, comminuted.
FCCC	fracture, complete, comminuted, compound.
FCCP	Fellow of the American College Of Chest Physicians.
FCD	fracture, complete, deviated.
FCE	food conversion efficiency.
FCI	flow cytometric immunophenotyping.
FCM	flow cytometry.
FCMC	family-centered maternity care.
FCOVD	Fellow of the College of Optometrists in Vision Development.
FCR	flexor carpi radialis.
FCS	fetal calf serum.
FCT	Federal Capitol Territory.
FCU	flexor carpi ulnaris.
FD	familial dysautonomia.
FDA	Food and Drug Administration (US).
FDA-BAM	Food & Drug Administration-Bacteriological Analytical Manual.
FDC	follicular dendritic cells.
FDI	first dorsal interosseus (muscle of the hand).
FDIM	fluorescence digital imaging microscopy.
FDIO	first dorsal interosseous (muscle).
FDMA	first dorsal metacarpal artery.
Fd-MIV	Friend derived murine immunosuppressive virus.
FDP	fibrin degradation products.
FDP	flexor digitorum profundus.
FDP	fructose-1,6-diphosphate.
FDS	flexor digitorum superficialis.
FDV	Four dimensional visualization.
Fe	iron.
FEA	focal epileptic activity.
FEB	fever.
FECG	fetal electrocardiogram.
FECS	Federation of European Cancer Societies.
FEF	forced expiratory flow.
FEKG	fetal electrocardiogram.
FEL	familial erythrophagocytic lymphohistiocytosis.
FeLV	feline leukemia virus.
FeNa	fractional excretion of sodium: (UNa x PCr/PNa x UCr) x 100; <1 in prerenal azotemia and 1 in intrinsic renal azotemia.
FEP	free erythrocyte protoporphyrin.
FER	flexion, extension, rotation.
FERC	Federal Energy Regulatory Commission.
FES	functional electric stimulation (Cleveland FES Center).
FES	functional electrical stimulation.
FES	functional endoscopic sinus.
FES-LCE	functional electrical stimulation (FES)-induced leg cycle ergometer (LCE).
FESSH	Federation of the European Societies for Surgery of the Hand.
FEV	forced expiratory volume.
FEV1	forced expiratory volume in one second.
FF	forward flexion.
Ff	free fraction.
FFA	for further appointment.
FFD	free from disability.
FFM	Five-Factor Model of personality.
FFROM	full, free range of motion.
FFS	failure-free survival.
FFS	fee-for-service.
FFS	Five-Factors Score (a prognostic scoring systems).
FFT	forward flexion: fingertips to toes.
FGF	fibroblast growth factor.
FH	family history.
FH	follicular hyperplasia.
FHLH	familial histiocytic lymphohistiocytosis.
FHR	fetal heart rate.
FHS	fetal heart sounds.
FHT	fetal heart tones.
Fib	fibroblasts.
FID	flame ionization detectors (chromatography).
FIGO	International Federation of Gynecology and Obstetrics (Federation Internationale de Gynecologie et d'Obstetrique).
FIMS	Federation Internationale de Medecine Sportive (International Federation of Sports Medicine).
FIN	finasteride.
FINCEN	Financial Center.
FiO2	fraction of inspired oxygen.
FISH	fluorescence in situ hybridization.
FIT	Fracture Intervention Trial.
FITC	fluorescein isothiocyanate.
FIX	fixed arm support.
FJRM	full joint range of motion.
FL	flank.
FL	flexion.
FL	fluid.
FL	follicular lymphoma.
FL	fully lactating.
FLD	frontal lobe dementia.
Flex	flexion.
FLEX	flexion.
Fli1	Friend leukemia integration 1 gene.
FL-LC	follicular lymphoma large cell.
FL-M	follicular lymphoma mixed small cleaved and large.
FL-SC	follicular lymphoma small cleaved.
FLX	flexion
FMD	family medical doctor.
FMD	foot and mounth disease.
FMF	Foreign Military Funding.
FMH	fetal-maternal hemorrhage.
FMR-1	fragile X mental retardation 1 gene.
FMRP	fragile X mental retardation protein(s).
FMS	fibromyalgia syndrome.
FMSI	Federazione Medico Sportiva Italiana (Federation of Italian Sports Medicine) (ItalianMedSport).
FN	fibronectin.
FNA	fine needle aspiration.
FNAB	fine-needle aspiration biopsy.
FNH	focal nodular hyperplasia.
FNP	family nurse practitioner
FO	fecal output.
FOBT	fecal occult blood testing.
FOC	flight of colors test.
FOP	fibrodysplasia ossificans progressiva.
FORE	Foundation for Osteoporosis Research and Education.
FOS	Finnish Osteoporosis Society (EFFO Member Society).
FOS	full of stool/constipated.
FOSA	Federation of Spine Associations (AAOS Specialty Societies).
FOSIT	Fosamax International Trial.
FP	fluticasone propionate.
FPA	fibrinopeptide A.
FPB	fibrinopeptide B.
FPB	flexor pollicis brevis.
FPD	fibrin(ogen) degradation products.
FPIA	fluorescence polarization immunoassay.
FPL	flexor pollicis longus.
FPL	functional profile length.
FPM	full passive movements.
FPMA	Florida Podiatric Medical Association.
FPT	farnesyl protein transferase.
FR	fracture.
FR	frequency of respiration.
FR	full range.
FRBB	fracture of both bones.
FRC	fibroblastic reticulum cells.
FRC	functional residual capacity.
FRCP(C)	Fellow of the Royal College of Physicians of Canada.
FRCP	Fellow of the Royal College of Physicians.
FRCSI	Fellow of the Royal College of Surgeons in Ireland.
FRJM	full range of joint movement.
FROM	full range of motion, full range of movement.
FS	frozen section.
FSB	Formosan Society of Biomechanics.
FSC	forward angle light scatter (flow cytometry term).
FSC	fracture, simple comminuted.
FSCAI	Fellow of the Society for Cardiac Angiography and Interventions.
FSCC	fracture, simple, complete, comminuted.
FSCCL	follicular small cleaved cell lymphomas.
FSCPC	fast-setting calcium phosphate cement.
FSD	functional sensory deficit.
FSE	fast-spin-echo.
FSGS	focal and segmental glomerulosclerosis.
FSH	follicle stimulating hormone.
FSN	Foreign Service National.
FSOs	family members and significant others.
FSS	frozen shoulder syndrome.
ft	Foot, feet, (measure).
FT	low-molecular polypeptide factors of thymus.
FT4	free thyroxin.
FT4I	free thyroxin (T4) index.
FTA-ABS	fluorescent treponemal antibody absorption test.
FTD	frontotemporal dementia.
FTI	farnesyl transferase inhibitor.
FTI	free thyroxin index.
FT-IR	Fourier Transform Infrared Spectroscopy.
FTIR	Fourier Transform Infrared.
FTKA	failed to keep appointment.
FTND	full term normal delivery.
FTNM	The French TNM Group.
FTR	fast-twitch red (skeletal muscle).
FTSG	full thickness skin graft.
FTT	failure to thrive.
FTW	fast-twitch white (skeletal muscle).
FTW	fat weight.
FTW	first time wheezing.
FTY	fat yield.
FU(5-)	5-fluorouracil (treatment regimen).
FU	follow-up.
FUBAR	Fowled Up Beyond All Recognition.
FUO	fever of undetermined (or unknown) origin.
FVC	forced vital capacity.
FVII	factor VII.
FVIIa	activated factor VII.
FVIIAg	factor VII antigen.
FVIIc	factor VII coagulant activity.
FWB	full weight bearing.
FX	Fx, fracture.
FXBB	fracture of both bones.
FXS	fragile X syndrome.
FY	fiscal year.
FYI	for your information.
G (354 abbreviations)
3':5'-GMP	guanosine 3':5'-cyclic phosphate.
3-GPA	3-guanidinopropionic acid.
αD-GPA	alpha-D-glucose pentaacetate.
G&O	gas and oxygen.
G	glycine.
g, gm	gram.
G	gravida.
G	guanine.
G	histopathological grading.
G/M	granulocyte/macrophage.
g/ml	grams per milliliter.
G/P	gravida/para.
G-1-P	glucose-1-phosphate.
G3P	G-3-P, glyceraldehyde-3-phosphate.
G3P	glycerol-3-phosphate.
G3PD	glucose-3-phosphate dehydrogenase.
G6P	G-6-P, glucose-6-phosphate.
G6Pase	G-6-Pase glucose-6-phosphatase.
G6PD	G-6-PD, glucose-6-phosphate dehydrogenase.
GA	gastric analysis; general appearance.
GA	general anaesthetic/anesthesia.
GA	gestational age.
GA	granulocyte agglutination assay.
GA/BW	16 gestational age/birthweight categories.
GAA	guanine-adenine-adenine codon for glutamic acid.
GAC	guanine-adenine-cytosine codon for aspartic acid.
GAD	generalized anxiety disorder.
GAF score	global assessment of functioning.
GAG	guanine-adenine-guanine codon for glutamic acid.
Gal	gallon.
GALOP (syndrome)	Gait disorder, Autoantibody, Late-age, Onset, Polyneuropathy.
GAMC	General Assistance Medical Care.
GAP-43	growth-associated protein-43.
gastroc	Gastrocnemius.
GAU	guanine-adenine-uracil codon for aspartic acid.
GB	gallbladder.
GBD	gallbladder disease.
GBEF	gallbladder ejection fraction.
GBM	glomerular basement membrane.
GBS	gallbladder series.
GBS	Guillian-Barre syndrome.
GC	gas chromatography.
GC	general condition.
GC	germinal center.
GC	gonococcal; gonococcus.
GC/MS	gas chromatography/mass spectrometry.
GCA	giant cell arteritis.
GCA	guanine-cytosine-adenine codon for alanine.
GCC	guanine-cytosine-cytosine codon for alanine.
GCDFP-15	gross cystic disease fluid protein 15.
GCG	guanine-cytosine-guanine codon for alanine.
GCNST	granular cell nerve sheath tumor.
GCP	Good Clinical Practice (guidelines).
GCRP	good clinical research practice.
GCS	Glasgow Coma Scale.
G-CSF	granulocyte colony stimulating factor promotes production of white blood cells.
GCT	germ cell tumor.
GCU	guanine-cytosine-uracil codon for alanine.
GD	gastroparesis diabeticorum.
G-DAP	Geriatric Draw-A-Person
GDM	gestational diabetes mellitus.
GDP	Gross Domestic Product.
GE	gastroenteritis.
GE	gastroesophageal.
GE	gradient echo (MRI).
Ged	end-diastolic conductances.
GED	gas electron diffraction.
GED	gastric emptying duration.
GED	gastric epithelial dysplasia.
GED	general emergency department.
GED	general equivalency diploma.
GED	generalised exfoliative dermatitis.
GED	generalized epileptiform discharges.
GED	Gln-enriched diet.
GED	glutamic acid diethyl ester.
GED	Graves' eye disease.
GED	GTPase effector domain.
GED	guanidinoethyldisulphide.
Ged	left ventricle centers of gravity at end-diastole.
GED-ELISA	gel electrophoresis-derived enzyme-linked immunosorbent assay.
GEDs	Glycosphingolipid-enriched domains.
GERD	gastroesophageal reflux disease.
Ges	end-systolic conductances.
GFAP	glial fibrillary acidic protein.
GFP	green fluorescent protein.
GFR	glomerular filtration rate.
GFW	Guizhi-Fuling-Wan (prescription of Traditional Chinese Medicine for liver disease).
GG	gamma globulin.
GGA	guanine-guanine-adenine codon for glycine.
GGC	guanine-guanine-cytosine codon for glycine.
GGF	glial growth factor.
GGF	grifolafrondosa.
GGG	guanine-guanine-guanine codon for glycine.
GGT	gamma-glutamyltransferase.
GGT	gamma-glutamyltranspeptidase.
GGU	guanine-guanine-uracil codon for glycine.
GH	general health.
GH	growth hormone (somatotropin).
GHBP	growth hormone binding protein.
GHD	growth hormone deficiency.
GHRF	growth hormone releasing factor.
GHSG	German Hodgkin Lymphoma Study Group.
GHT	geniculo-hypothalamic tract.
GHT	growth hormone therapy.
GI	[gaster (Greek)] gastrointestinal.
GI	gonion.
GIC	glass ionomer cement.
GICD	Groupe Internationale Cotrel Dubousset.
GIF	granulocyte immunofluorescence assay.
GIH	gastrointestinal hormone.
GIN	glucose/nitrogen ratio.
GINS	glucose in normal saline (solution).
GIP	gastric inhibitory peptide.
GIP	giant cell interstitial pneumonia.
GIP	glucose-dependent insulinotropic peptide.
GIP	gonorrheal invasive peritonitis.
GIS	Global Information System.
GLC	gas-liquid chromatography.
Gln	glutamine.
GLP	good laboratory practice.
Glu	glucose.
Glu	glutamic acid.
GLU	glutamic acid.
gluc	glucose.
GLUC	glucosidase.
GLUD	glutamate dehydrogenase.
GLUDP	glutamate dehydrogenase pseudogene.
GLUL	glutamate (ammonia) ligase.
GLUR	glutamate receptor.
GLUT	glucose transporter.
GLV	gibbon ape leukemia virus.
GLV	Gross leukemia virus.
GLVR	gibbon ape leukemia virus receptor.
GLY	gly, glycine.
Gly	glycine
glyc	glyceride.
GM&S	general medicine and surgery.
Gm	an allotype marker on the heavy chains of immunoglobins.
gm	cal gram calorie.
GM	gastric mucosa.
GM	Geiger-Muller (counter).
G-M	Geiger-Muller (counter).
GM	general medicine.
GM	genetic manipulation.
GM	geometric mean.
GM	giant melanosome.
gm	GM, gram.
GM	gram.
gm	gram.
g-m	gram-meter.
GM-	gram-negative.
GM	grand mal (epilepsy).
GM	grand multiparity.
GM	grandmother.
GM	granulocyte-macrophage.
GM	gray matter.
GM	gross motor.
GM	growth medium.
gm. neg.	gram negative.
gm/cc	grams per cubic centimeter.
gm/l	grams per liter.
GM+	gram-positive.
GMA	glyceral methacrylate.
GMA	gross motor activity.
GMB	gastric mucosal barrier.
GMB	granulomembranous body.
GMBF	gastric mucosa blood flow.
GMC	general medical clinic.
GMC	general medical council.
GMC	giant migratory contraction.
GMC	grivet monkey cell.
GMCD	grand mal convulsive disorder.
GM-CFU	granulocyte~macrophage colony forming unit.
GM-CSF	granulocyte and macrophage colony stimulating factor.
GMD	geometric mean diameter.
GMD	glycopeptide moiety modified derivative.
GME	graduate medical education.
GMENAC	Graduate Medical Education National Advisory Committee.
GMH	germinal matrix hemorrhage.
GMK	green monkey kidney (cells).
GML	gut mucosa lymphocyte.
gm-m	gram-meter.
GMN	gradient moment nulling.
g-mol	gram-molecule.
GMP	glucose monophosphate.
GMP	good manufacturing practice.
GMP	granule membrane protein.
GMP	guanosine monophosphate.
GMPR	guanine monophosphate reductase.
GMPs	GDP-mannose pyrophosphorylases.
GMR	gallops, murmurs, rubs.
GMR	gradient motion rephasing.
GMRH	germinal matrix related hemorrhage.
GMRI	gated magnetic resonance imaging.
GMS	General Medical Service.
GMS	geriatric mental state.
GMS	Gilbert-Meulengracht syndrome.
GMS	glyceryl monostearate.
GMS	Gomori methenamine silver stain.
GMS	goniodysgenesis-menta1 retardation-short stature (syndrome).
GMSC	General Medical Services Committee.
GMT	geometric mean titer.
GMT	gingival margin trimmer.
GMV	gram molecular volume.
GMW	gram molecular weight.
GN	gaze nystagmus.
GN	glomerulonephritis.
GN	glucose nitrogen (ratio).
Gn	gnathion.
GN	gnotobiote.
Gn	gonadotropin.
GN	graduate nurse.
GN	gram-negative.
GN	guanine nucleotide.
GNA	general nursing assistance.
GNAT	guanine nucleotide-binding protein, alpha-transducing.
GNAZ	guanosine nucleotide-binding alpha Z polypeptide.
GNB	ganglioneuroblastoma.
GNB	gram-negative bacillus.
GNB	guanine nucleotide-binding (protein).
GNBM	gram-negative bacillary meningitis.
GNBT	guanine nucleotide-binding protein, beta transducing.
GNC	general nursing care.
GNC	General Nursing Council.
GNC	geriatric nurse clinician.
GND	Gram-negative diplococci.
GNID	gram-negative intracellular diplococci.
GNP	geriatric nurse practitioner.
GNP	gerontologic nurse practitioner.
GNP	Gross National Product .
GNR	gram-negative rods.
GnRF	gonadotropin-releasing factor.
GnRH	gonadotropin-releasing hormone.
GnRHR	gonadotropin-releasing hormone receptor.
GNTP	Graduate Nurse Transition Program.
GO	gastro-(o)esophageal.
GO	geroderma osteodysplastica.
GO	glucose oxidase.
Go	gonion.
GO	gonorrhea.
GOA	generalized osteoarthritis.
GOAT	Galveston Orientation and Amnesia Test.
GOBAB	gamma-hydroxy-beta-aminobutyric acid.
GOE	gas, oxygen, and ether.
GOG	Gynecologic Oncology Group.
GOH	gemderma osteodysplastica hereditaria.
GOK	God only knows (the diagnosis).
GOMER	Get Out of My Examination Room.
GOMER	Grand Old Man of the Emergency Room.
GON	gonococcal ophthalmia neonatorum.
GON	Government of Nigeria.
GOND	glaucomatous optic nerve damage.
GOQ	glucose oxidation quotient.
GOR	gastroesophageal reflux.
GOR	general operating room.
GOS	Glasgow outcome score.
GOT	aspartate aminotransferase.
GOT	glucose oxidase test.
GOT	glutamate oxaloacetate transaminase.
GOT	goal of treatment.
GOTM	glutamic-oxaloacetic transaminase, mitochondrial.
GOX	glyphosate oxydoreductase.
GP	gangliocytic paraganglioma.
GP	gastric pneumatosis.
GP	gastroplasty.
gp	gene product.
GP	general paralysis, general paresis.
GP	general physic.
GP	general practice, general practitioner.
GP	genetic prediabetes.
GP	geometric progression.
GP	globus pallidus.
GP	glucose phosphate.
GP	glutathione peroxidase.
GP	glycerophosphate.
GP	glycogen phosphorylase.
GP	glycopeptide.
GP	glycophorin.
GP	glycoprotein.
GP	Goodpasture syndrome.
GP	gram positive.
GP	gross product.
GP	group.
GP	guinea pig.
GP	gutta percha.
Gp	parallel conductance.
gp46	viral protein specific to HIV virus.
GPA(3-)	3-guanidinopropionic acid.
GPA(α-D)	alpha-D-glucose pentaacetate.
GPA	Goodpasture antigen.
GPA	grade point average.
GPA	Group Practice Association.
GPA	growth-promoting activity.
GPA	guinea pig albumin.
Gpa	the phosphorylated high-activity form of glycogen phosphorylase (GP).
GPAIS	guinea pig anti-insulin serum.
GPB	glossopharyngeal breathing.
GPB	glycophorin B.
GPb	the dephosphorylated low-activity form of glycogen phosphorylase (GP).
GPC	gastric parietal cell.
GPC	gel permeation chromatography.
GPC	giant papillary conjunctivitis.
GPC	glycophorin C.
GPC	granular progenitor cell.
GPC	guinea pig complement.
GPCI	geographic practice cost index.
GPD	glucose-6-phosphate dehydrogenase.
GPD	glycerol-phosphate dehydrogenase.
GPI	glycophosphatidilinositol (anchor surface protein deficient in PNH).
GPI	glycosylphosphatidylinositol.
GPOH	Gesellschaft fur Padiatrische Onkologie und Hamatologie (German Paed. Onc Group).
GPP	good pharmacy practices.
GPR	good partial remission.
GPT	glutamic pyruvic transaminase.
GPx	glucathione peroxydase.
GR	gastric resection; great, greater; gross, grossly; group.
GR	glutathione reductase.
gr	grain.
Gra	granulocytes.
GRAIL	Gene Recognition and Analysis Internet Link.
GRAV	Grav., gravida, a pregnant woman.
GRE	gradient echo.
GRH	growth hormone-releasing hormone (somatocrinin).
GRID	gay-related immunodeficiency.
GRM	gallop, rub, murmur.
GS	glycogen synthase.
GSC	gas-solid chromatography.
GSH	reduced glutathione.
GSM	grams per square meter.
GSS	Gerstmann-Strussler syndrome.
GSS	glucose-saline solution.
GSS	Gruppo di Studio della Scoliosi e delle Patologie Vertebrali.
GSSG	oxidized glutathione.
GST-P	glutathione S-transferase P form.
GSW	gun shot wound.
GT	gait training.
gt	gtt, drop, drops.
GTD	gestational trophoblastic disease.
GTT	glucose tolerance test.
Gtts	drops per minute.
G-type	gastric type.
GU	(genitalis) genitourinary.
GU	gastric ulcer.
GUA	guanine-uracil-adenine codon for valine.
GUC	guanine-uracil-cytosine codon for valine.
GUG	guanine-uracil-guanine codon for valine.
Guppying	the complete exterior and interior alteration that most World War II boats experienced after the war.
GUU	guanine-uracil-uracil codon for valine.
GvHD	graft versus host disease.
GVHR	graft vs. host reaction.
GW	gigaohm (one billion ohms).
GXT	graded exercise test.
Gy	grays (units of radiation).
GYN	gyn, gynecology.
H (309 abbreviations)
12-HETE	12-hydroxyeicosatetraenoic acid.
H&E	hematoxylin and eosin stain.
H&E	hemorrhage and exudate
H&H	hematocrit and hemoglobin.
H&P	history and physical (examination).
H	histidine.
h	hour.
H	hypodermic, hydrogen.
H. flu	Haemophilus influenzae.
h.p.f.	high power field.
H/O	h/o, history of.
H2S	hydrogen sulfide.
HA	headache.
HA	high anxiety.
HA	hospital admission.
HA	hydroxylapatite.
HA/Al	hydroxyapatite coated porous alumni (ceramic).
HAA	hepatitis associated antibodies.
HAART	highly active antiretroviral therapy.
HAC	hydroxylapatite ceramic.
HACCP	Hazard Analysis and Critical Control Point.
HAD	high-alcohol-drinking.
HADD	highest average daily dose.
HADS	Hospital Anxiety and Depression Scale.
HaeIII	restriction enzyme from Haemophilus aegyptius.
HAL	hypocellular acute leukemia.
HAM	human alveolar macrophage.
HASCVD	hypertensive arteriosclerotic cardiovascular disease
HAT	Halsted aphasia test.
HAT	harmonic attenuation table.
HAT	head, arm, trunk.
HAT	heparin-assosiated thrombocytopenia.
HAT	hepatic artery thrombosis.
HAT	heterophil antibody titer.
HAT	high albumin transport.
HAT	histone acetyltransferase.
HAT	hospital arrival time.
HAT	hypoxanthine, aminopterin and thymidine.
HAT	hypoxanthine, azaserine and thymidine.
Hb	hemoglobin.
HbA1c	hemoglobin A1c - used for monitoring blood glucose.
HBD	has been drinking.
HBD	hydroxybutyrate dehydrogenase.
HBF	hepatic blood flow.
HBIG	hepatitis B immune globuline.
Hbp	high blood pressure.
HBPV	Hemophillus influenzae type B polysaccharide vaccine.
HBSAG	hepatitis B surface antigen.
HBSE	Human Behavior & Social Environment.
HBV	hepatitis B virus.
HC	Hassal's corpuscles.
HCA	hepatic cell adenomas.
HCA	Murex Hybrid Capture CMV DNA assay.
HCC	hepatocellular carcinoma.
HCFA	Health Care Financing Administration (US).
HCG	human chorionic gonadotropin.
HCGs	hyperchromatic crowded groups.
HCII	Heparin cofactor II.
HCL	hairy cell leukemia.
HCl	hydrochloric acid, hydrochloride.
HCM	health care maintenance.
HCM	hypertrophic cardiomyopathy.
HCO3	bicarbonate.
HCPS	hantavirus cardiopulmonary syndrome.
HCT	Hct, hct, ht, hematocrit (also packed cell volume, see PCV).
HCT	helical computed tomographic.
HCTZ	hydrochlorothiazide.
HCV	hepatitis C virus.
HCV	hog cholera virus.
HCVD	hypertensive cardiovascular disease.
HD	hearing distance.
HD	heart disease.
HD	helper-dependent (e.g. adenoviral vectors).
HD	hemodialysis.
HD	herniated disks.
HD	high dose.
HD	Hodgkin's disease (lymphoma).
HD	hospital day.
HDC	high dose chemotherapy (often used as HDC/BMT) /PSCT or /PSCR ," used with HDC, means with peripheral" stem cell transplant or rescue.
HDC	high-dose chemotherapy.
HDCT	high-dose chemotherapy.
HDCV	human diploid cell vaccine.
HDF	human diploid fibroblast.
HDL	high density lipoprotein.
HDN	hemolytic disease of the newborn.
HDPE	high-density polyethylene.
HDS	herniated disc syndrome.
HE	Hektoen enteric agar.
HE	hereditary eliptocytosis.
HEADS	home , education & employment, activities, drugs, and sexuality (special history taking technique for adolescents).
HEC	Hemorrhagic Escherichia Coli.
HECOS	Health and Economic Consequences of Smoking.
HEDIC	Healthcare Electronic Data Interchange Corporation.
HEENT	head, ears, eyes, nose, and throat.
HELLP	hemolysis, elevated liver enzymes, low platelets syndrome.
HEMA	2-hydroxyethylmethacrylate.
HEMA-MMA	hydroxyethyl methacrylate-methyl methacrylate.
HEP	home exercise program.
HEPA	high-efficiency particulate air/adsorption.
HER2	human EGF-like receptor no. 2; short for HER2,ECD (extra cellular domain) (also called Her2/neu).
HETE's	HydroxyEicosaTetraEnoic acids.
HEV(s)	high endothelial venule(s).
HF	hay fever.
HF	heart failure.
HFC	high frequency cells.
HFOV	high-frequency oscillatory ventilation.
HFRT	hyperfractionated radiotherapy.
HFV	hippocampal formation volume.
HG	herpes gestationis.
HG	Hog Cholera.
Hg	Mercury.
hgb	Hb, HGB, hemoglobin.
HGE	human granulocytic ehrlichiosis.
HGH	human growth hormone.
HGM	human gastric mucin.
HGPRT	hypoxanthine guanine phosphoribosyl transferase.
HGSIL	high-grade squamous intraepithelial lesion.
HH	hard of hearing.
HH	hiatal hernia.
Hha	Halobacterium halobium.
HHC	hereditary hemochromatosis.
HHNK	hyperglycemic hyperosmolar non-ketotic.
HHV	human herpes virus.
HHV-8	human herpes virus 8.
HI	hemagglutination inhibition.
Hi	hemiglobin (methemoglobin).
HIAA (5-)	5-hydroxyindoleacetic acid.
HIB	Haemophilus influenzae type B.
Hib	Hemophillus influenzae type B conjugate vaccine.
HIBCC	Health Industry Bar Code Council.
HiCN	hemiglobincyanide.
HIDA	Health Industry Distributors Association.
HIDA	hepatic iminodiacetic acid (imaging or scanning).
HIDA	tetrahydroindazolone carboxylic acid.
HIER	heat induced epitope retrieval.
HIFU	high intensity focused ultrasound.
HIM	Health Information Management.
HIMA	Health Industry Manufacturers Association.
HindIII	restriction enzyme from Haemophilus influenzae Rd.
HIPAA	Health Insurance Portability and Accountability Act.
HIPSOC	Hip Society (also: AAOS Related Organizations).
His	histidine.
HIT	heparin induced thrombocytopenia.
HIT	Holtzman Inkblot Technique.
HIV	human immunodeficiency virus.
HIV/AIDS	Human Immuno-Deficiency Virus/Acquired Immune Deficiency Syndrome.
H-J	hepatojugular.
HJR	hepatojugular reflux.
HK	high molecular weight kininogen.
HKAFO	hip-knee-ankle-foot orthosis.
HKCOS	Hong Kong College of Orthopaedic Surgeons.
HKOA	Hong Kong Orthopaedic Association.
HL	hearing loss.
HL	heart and lungs.
HLA	heart, lungs, abdomen.
HLA	human leukocyte antigen.
HL-A	Human Leukocyte Associated antigens (HL-A matching for BMT).
HLA-DR	D-related human leukocyte antigen.
HLFs	human lung fibroblasts.
HLH	histiocytic lymphohistiocytosis.
HLK	heart, liver, kidney.
HLV	herpes like virus.
HM	hand motion.
HM	heart murmur.
HMD	hyaline membrane disease.
HME	heat and humidity exchanger.
HMGI	high mobility group I.
HMGR	3-Hydroxy-3-methylglutaryl-coenzyme A reductase.
HMO	health maintenance organization.
HMP	hexose monophosphate (oxidative shunt).
HMP	hot moist packs.
HMPAO	hexamethyl propyleneamine oxime.
HMSN	hereditary motor and sensory neuropathies.
HMWK	high-molecular weight kininogen.
HNP	herniated nucleus pulposus.
HNPP	hereditary neuropathy with liability to pressure palsies.
HNV	has not voided.
HO	heterotopic ossification.
HO	history of.
HO	house officer.
HOA	hypertrophic osteoarthropathy.
HOB	head of bed.
HOCM	hypertrophic obstructive cardiomyopathy.
HoFH	homozygous familial hypercholesterolaemia.
HOH	hard of hearing.
HOMC	hypertrophic obstructive cardiomyopathy.
HON	Health On the Net Foundation.
HONC	hyperosmolar nonketotic coma.
Hop	H. pylori outer membrane protein.
Hor v 9	group IX pollen allergen from barley (Hordeum vulgare).
HOR	Health outcomes research.
HOR	high outlet resistance.
HOR	higher-order repeat.
HOR	homing receptor.
HOR	homologue of rap.
HOR	hordein genes.
HOR	horizontal movable arm support.
hor	horizontal.
hOR	human oestrogen receptor.
hOR	human oxidoreductase.
HOR	hydroxysteroid oxidoreductase.
HOR	hyperosmolarity-responsive.
HOR	rehydrated Hemoccult.
Hor-1	fucan sulfate isolated from the hot water extract of an edible brown alga, Sargassum horneri.
HOS	Hawaii Orthopaedic Society.
HOS	Hemoccult sensa.
HP	haptoglobin.
HP	hemipelvectomy.
HP	hot pack.
HP	hot-plate.
HPA	hypothalamo-pituitary-adrenocortical.
HPC	hematopoietic progenitor cells.
HPC-PEP	peplomycin emulsion in hydroxypropylcellulosum.
HPE	history and physical examination.
HPETE	hydroperoxyeicosatetraenoic acid.
HPF	high power field.
HPFH	hereditary persistence of fetal hemoglobin.
HPI	history of present illness.
HPL	Human Performance Laboratory.
hPL	human placental lactogen.
HPLC	high pressure (or performance) liquid chromatography.
HPMC	hydroxypropyl methylcellulose.
HPNS	high pressure neurologic syndrome.
HPP	hereditary pyropoikilocytosis.
HPSA	health professional shortage area.
HPT	hyperparathyroidism.
HPTR	hypoxanthine phosphoribosyltransferase.
HPV	Human Papilloma Virus.
HQoL	health-related quality of life.
HR	heart rate.
HR	high risk.
HR	hospital record.
Hr	hour.
HRDO	Human Resources Development Office.
HRF	homologous restriction factor (regulates C9).
HRIG	human rabies immunoglobin.
HRMS	Human Resources Management Systems.
HRP	horseradish peroxidase.
HRQOL	health-related quality of life.
HRRR	heart regular rate and rhythm.
HRS	Hodgkin and Reed-Sternberg cells.
HRT	hormone replacement therapy.
HS purpura	Henoch-Schönlein purpura.
hs	h.s., hora somni - hours of sleep, at bedtime.
HS	heart sounds.
HS	hereditary spherocytosis.
Hs	hora somni.
HSA	human serum albumine.
hs-CRP	high-sensitivity C-reactive protein.
HSDA test	high solids anaerobic digestion test.
HSEL	Hemeselect.
HSG	hysterosalpingography.
HS-GC	head space gas chromatography.
HSIL	high squamous intraepithelial lesion.
HSP	Henoch-Schönlein purpura.
HSS	Hospital for Special Surgery.
HSV	herpes simplex virus.
HT	heart.
ht	height.
HT	hospital treatment.
HT	hypertension.
HT	hyperthyroidism.
HTLV-I	human T-cell lymphotropic virus types I.
HTMT	heptane carboxamide (an H1 receptor antagonist).
HTN	hypertension.
HTS	high throughput screening.
HUS	hemolytic uremic syndrome.
HUVEC	human umbilical vein endothelial cells.
HV	half-value.
HV	healthy volunteers.
HV	hepatic vein.
HV	herpes virus.
HV	home visit.
HV	hospital visit.
HV	hyperventilation.
HVA	homovanillic acid.
HVD	hypertensive vascular disease.
HVL	half-value layer.
HVO	Health Volunteers Overseas.
HW	healing well.
HW	hemodynamically weighted.
HWI	hazardous waste incinerator.
HWI	Hazardous Waste Index.
HWI	head-out water immersion.
HWI	Heart weight index.
HWI	Heart work index.
HWI	heartworm infection.
HWI	height-width index.
HWI	hemodynamically weighted imaging.
HWI	Hepatic weight index.
HWI	high water intake.
HWI	hip-waist index.
HWI	hot-water irrigation (was introduced as a treatment of epistaxis more than 100 years ago).
HWL	healthy way of life.
HWL	Heat-Withdrawal Latency.
HWL	height-width-length.
HWL	hindpaw withdrawal latency.
HWL	hybrid white leghorn.
HWL-12	2-phenyl-3-(3',5'-dimorpholinomethyl-4'-hydroxy)-benzoyl-indole.
HWP	hot wet pack.
HWT	H-wave therapy.
Hx	history.
HY	Hoehn and Yahr (scale).
HYP	hyperpneic.
hyp.	hypodermic.
hypo	hypodermically.
Hz	Hertz (cycles per second).
HZT	high zone tolerance.
HZV	herpes zoster virus
I (434 abbreviations)
I&D	incision and drainage
I&E	internal and external.
I&O	intake and output (as for fluids).
I	isoleucine.
I.M.	intramuscular
I.Q.	intelligence quotient
I.V.	IV, intravenous
IA	incurred accidentally.
IA	intra-arterial.
IA	invasive aspergillosis.
IABP	intra-aortic balloon pump
IAC	infinite amplitude clipping.
IAC	internal acoustic canal.
IACR	International Agency on Cancer Research.
IADH	inappropriate secretion of antidiuretic hormone.
IADHS	inappropriate secretion of antidiuretic hormone syndrome.
IAHL	infection-associated hemophagocytic lymphohistiocytosis.
IAHS	infection-associated hemophagocytic syndrome.
IAP	inhibitor of apoptosis.
IAPM	International Association of Medical Prosthesis Manufacturers.
IARC	International Agency for Research on Cancer.
IAS	Indian Arthroscopy Society.
IASLC	International Association for the Study of Lung Cancer.
IASP	International Association for the Study of Pain.
IATMR	tetramethylrhodamine-iodoacetamide.
IBC	idiopathic bone cavity.
IBC	idiotype binding capacity.
IBC	immunoglobulin bearing cells.
IBC	incidence of bacteria-carrier.
IBC	indirect bilirubin concentrations.
IBC	inflammatory breast cancer.
IBC	Injury Behavior Checklist.
IBC	Inoue balloon catheter.
IBC	Institutional Biosafety Committee.
IBC	insulin binding capacity.
IBC	integrated backscatter coefficient.
IBC	Integrated Broadband Communication.
IBC	International BioClinical.
IBC	International Bioethics Committee (of UNESCO)
IBC	International Biophysics Corporation.
IBC	International Business Communications.
IBC	interval breast cancer (breast cancer diagnosed within 1 year of a negative annual screening examination)
IBC	intraductile breast cancer.
IBC	invasive bladder cancer.
IBC	invasive breast cancers.
IBC	iodine binding capacity.
IBC	ionophore of bivalent cations.
IBC	iron binding capacity.
IBC	isobutyl cyanoacrylate.
IBC	isobutylchloroformate.
IBD	inflammatory bowel disease.
IBE	individual bioequivalence.
IBG	iliac bone graft.
IBIDS syndrome	ichthyosis, brittle hair, impaired intelligence, decreased fertility, short stature.
IBMTR	International Bone Marrow Transplant Registry.
IBP	Ibuprofen.
IBS	irritable bowel syndrome.
IBSE	International Federated Body on Scoliosis Etiology.
IBW	ideal body weight.
IC	between meals.
IC	inspiratory capacity.
IC	intensive care.
IC	intracerebral.
ICA	immunohistochemical assay.
ICA	internal carotid artery.
ICAM	intercellular adhesion molecules.
ICAM-1	intercellular adhesion molecule 1 (endothelial cell adhesion molecule).
ICAO	International Civil Aviation Organization.
ICARE	International Cancer Alliance for Research and Education (ICARE).
ICASS	Internal Cooperative Agreement Support and Services.
ICBG	iliac crest bone graft.
ICC	inferior colliculus.
ICC	intensive coronary care.
ICCG	International Collaborative Cancer Group
ICCPO	Icelandic Childhood Cancer Parent Organisation.
ICCPO	International Confederation of Childhood Cancer Parent Organizations
ICCU	intensive coronary care unit.
ICD	implantable-cardioverter defibrillator.
ICD	International Statistical Classification of Disease, published by WHO.
ICD	isocitrate dehydrogenase.
ICD-10	International Classification of Diseases, 10th Revision, maintained by WHO.
ICD-9	International Classification of Diseases, 9th Revision, online sponsor: UCD Medical Informatics.
ICD-9-CM	International Classification of Diseases, 9th Revision, clinical modification.
ICDA	international classification of diseases, adapted.
ICD-O M	morphologic rubric of ICD-O.
ICD-O T	topographic rubric of ICD-O.
ICD-O	International Classification of Diseases for Oncology (coding system).
ICEID 2000	The International Conference on Emerging Infectious Diseases 2000.
ICER	incremental cost-effectiveness ratio.
ICF	informed consent form.
ICF	intensive care facility.
ICF	intermediate care facility.
ICF	intracellular fluid.
ICFX	intracapsular fracture.
ICH	human infantile cortical hyperostosis.
ICH	International Conference on Harmonization (GCP).
ICM	intercostal margin.
ICN	intensive care nursery.
ICOE	International Center for Orthopaedic Education (US).
ICP	intracranial pressure.
ICPA	International Chiropractic Pediatric Association.
ICRF	Imperial Cancer Research Fund (UK).
ICRS	International Cartilage Repair Society.
ICS	intercostal space.
ICS	International Continence Society.
ICSF	International College of Surgery of the Foot.
ICSI	Intracytoplasmic sperm injection.
ICSI	intracytoplasmic sperm injection.
ICT	intermittent cervical traction.
ICU	intensive care unit.
ID	during the day.
ID	identification.
ID	ill defined.
ID	ineffective dose.
ID	infectious disease.
ID	internal diameter.
ID	intradermal.
IDA	iron deficiency anemia.
IDC	infiltrating ductal carcinoma.
IDC	interdigitating cells.
IDD	insulin dependent diabetes.
IDD	internal disc disruption.
IDDM	insulin-dependent diabetes mellitus, type I.
IDET	intradiscal electrothermal therapy.
IDK	internal derangement of the knee.
IDU	injection drug users.
IDW	ideal body weight.
IE	inner ear.
IEC	independant ethics committee.
IEC	Information, Education, and Communication.
IEEE	Institute of Electrical and Electronics Engineers.
IESS	Intergroup Ewing's Sarcoma Study (USA).
IFA	indirect immunofluorescent IgG antibody.
IFC	International Finance Corporation.
IFE	immunofixation electrophoresis.
IFEB	International Federation of Eye Banks.
IFG	impaired fasting glucose.
IFMBE	International Federation for Medical and Biological Engineering.
IFN	interferon.
IFOSA	International Federation of Spine Associations.
IFPOS	International Federation of Pediatric Orthopaedic Societies.
IFR	inspiratory flow rate.
IFSC	International Federation of Surgical Colleges (WHO non-governmental organizations).
IFSSH	International Federation of Societies for Surgery of the Hand.
IG	immature granulocyte.
IgA	immunoglobulin A.
IgD	immunoglobulin D.
IgE	immunoglobulin E.
IGF	insulin-like growth factor (somatomedin).
IGF	insulin-like growth factor.
IGFBP	insulin-like growth factor binding protein.
IGFBP-5	insulin-like growth factor-binding protein-5.
IgG	immunoglobulin G.
IGHD IB	isolated growth hormone deficiency type IB.
IgM	immunoglobulin M.
IgSF	Ig superfamily.
IGT	impaired glucose tolerance.
IGV	immunoglobulin variable region gene.
IH	infectious hepatitis
IH	interval history.
IHA	inhibition of hemagglutination.
IHC	immunohistochemistry.
IHC	Internet Healthcare Coalition.
IHD	ischemic heart disease.
IHR	intrinsic heart rate.
IHS	International Hip Society.
IHSS	idiopathic hypertrophic subaortic stenosis.
IHT	internittent hypoxic training.
IID	insulin dependent diabetes.
IIF	indirect immunofluorescence.
IIS	Intergalactic Institute of Shoulderology.
IITS	International Intradiscal Therapy Society.
IL	ilio-lumbar.
IL	interleukine.
IL2	Interleukin2.
ILC	interstitial laser coagulation.
Ile	isoleucine.
ILL	intermediate lymphocytic lymphoma.
ILO	International Labor Office.
ILP	isolated limb perfusion.
ILSG	International Lymphoma Study Group.
IM	infectious mononucleosis.
IM	internal medicine.
IM	intramedullary.
IM	intramuscular.
IMBC	indirect maximum breathing capacity.
Im-DCH-beta-Gal	O-[4-(1-imidazolyl)butyl]-2,3-dicyano-1,4-hydroquinonyl beta-D-galactopyranoside.
IME	independent medical examiner.
IMF	International Monetary Fund.
IMF	International Myeloma Foundation.
IMHO	in my humble opinion.
IMI	Imipramine (Tofranil).
IMI	intramuscular injection.
IML	intracranial mass lesion.
IMLAS	International Musculoskeletal Laser Society.
IM-like	infectious mononucleosis-like.
IMM	immediate.
IMM	immobilize.
IMM	immunize.
IMMC	interdigestive migratory motor complex.
IMO	in my opinion.
IMP	immuno magnetic particles.
Imp	impression.
IMP	improved.
IMP	inosine 5'-monophosphate.
IMPOX	immunoperoxidase.
IMRI	Interventional Magnetic Resonance Imaging.
IM-ROD	intramedullary rod.
IMRT	intensity-modulated radiotherapy.
IMS	immunomagnetic separation.
INC	incomplete.
INC	inconclusive.
INC	increase.
INCB	International Narcotics Control Board of United Nations.
IND	independent.
IND	Indomethacin.
IND	investigational new drug (see FDA).
INF	infant.
INF	infarction.
INF	infected.
INF	inferior.
Inf.	infusion.
INFA	International Neurofibromatosis Association.
INH	isoniazid.
INJ	inject; injection.
INJ	injury.
INK	injury not known.
INL	International Narcotics and Law Enforcement Affairs Bureau (DOS).
iNO	inhaled nitric oxide.
INR	intermittent.
INR	International Normalized Ratio (standard of care for the management of anticoagulation).
INR	interval.
INS	Immigration and Naturalization Service.
INS	insulin.
INS	insurance.
InsP(3)	inositol 1,4,5-trisphosphate.
INSS	International Neuroblastoma Staging System.
int	internal.
Int.	internal.
Intra	inside (e.g. intracavitary); during (e.g. intraoperative = during surgery).
IO	inferior oblique.
IO	intestinal obstruction.
IOA	Indian Orthopaedic Association.
IOFB	intraocular foreign body.
IOL	intraocular lens.
IOM	interosseous membrane.
IOP	intraocular pressure.
IORT	intraoperative radiotherapy.
IOU	intensive therapy observation unit.
IP	interphalangeal.
IP	intra-peritoneal.
IP3	inositol-1,4,5,-triphsophate.
IPA	5-(N-methyl-N-isopropyl) amiloride.
IPA	idiopathic premature adrenarche.
IPA	iInvasive pulmonary aspergillosis.
IPA	immunoprecipitation assay.
IPA	Independent Practice Associations.
IPA	indices of platelet activation.
IPA	Indol-3-pyruvic acid.
IPA	Indole-3-propionic acid.
IPA	inferior phrenic artery.
IPA	infiltrating pancreatic ductal adenocarcinoma.
IPA	Information Processing Ability.
IPA	inherited paternal HLA antigens.
IPA	integrated pulse amperometry.
IPA	interference pattern analysis.
IPA	International Paediatric Association.
IPA	International Pharmaceutical Abstracts.
IPA	intimate partner abuse.
IPA	intralobar pulmonary arteries.
IPA	intraperitoneal.
IPA	intrapulmonary arteries.
Ipa	invasion plasmid antigens proteins.
IPA	iodo-l-phenylalanine.
IPA	ipamorelin.
IPA	irrigation pipe-associated.
IPA	isopropyl alcohol.
IPA	isopropylamine.
IPA	Isopropylantipyrine.
Ipa	pasiniazid.
IPA-EST	indophenyl acetate esterase.
IPC(foot)	intermittent pneumatic foot compression.
IPC	in-process control.
IPE	iris pigment epithelium.
IPHC	International Prostate Health Council.
IPHC	intraperitoneal hyperthermic perfusion chemotherapy.
IPHC	isoproterenol hydrochloride.
IPI	international prognostic index.
IPK	isolated perfused rat kidney.
IPOP	immediate postsurgical prosthetics.
IPPA	inspection, palpation, percussion, auscultation.
IPPB	intermittent positive pressure breathing.
IPPO	intermittent positive-pressure inflation with oxygen.
IPPR	intermittent positive pressure respiration.
IPPS	Independent Power Producers.
IPPV	intermittent positive pressure ventilation.
IPRAF	International Plastic, Reconstructive and Aesthetic Foundation.
IPRAS	International Confederation for Plastic, Reconstructive and Aesthetic Surgery.
IPSID	immunoproliferative small intestinal disease.
IPSM	Institute for Preventative Sports Medicine.
IPSP	inhibitory postsynaptic potential.
IPSP	The Italian Prognostic System Project.
IPSS	International Prostate Symptom Score.
IPTG	isoproylthiogalactoside.
IPV	inactivated poliovirus vaccine.
IPX	immunoperoxidase.
IPx	impaired glucose tolerance.
IPx	phosphoinositide.
IQ	intelligence quotient.
IQC	instrument quality control.
IR	immunoreactive.
IR	infrared.
IR	internal rotation.
IR	intracellular receptor.
Ir	iridium.
IRB	institutional review board.
IRBBB	incomplete right bundle-branch block.
IRE	internal rotation in extension.
IRF	internal rotation in flexion.
IRI	immunoreactive insulin.
IRMA	intraretinal microvascular abnormalities.
IRrs	Inspiratory Rrs.
IRS	Internal Revenue Service.
IRSSD	International Research Society for Spinal Deformities.
IS	in situ.
IS	intercostal space.
ISA	intrinsic sympathomimetic activity.
ISAC	International Society for Analytical Cytology.
ISAG	International Society for Animal Genetics.
ISAK	International Society for the Advancement of Kinathropometry.
ISAKOS	International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (also: AAOS Specialty Societies).
ISAZ	International Society for Anthrozoology.
ISB	International Society of Biomechanics.
ISBS	International Society of Biomechanics in Sports.
ISC	instrument standardization and calibration.
ISCAS	International Society for Computer Aided Surgery.
ISDRF	International Spinal Development & Research Foundation.
ISEP	International Society of Educators in Physiotherapy.
ISG	immune serum globulin.
ISG	International Shoulder Group.
ISH	in situ hybridization.
ISH	isolated systolic hypertension.
ISHLT	the International Society for Heart and Lung Transplantation.
ISI	international sensitivity index.
ISIS	International Spinal Injection Society.
ISL	interscapular line.
ISM	indolent systemic mastocytosis.
ISMISS	International Society for Minimal Intervention in Spinal Surgery.
ISO	isoflurane.
ISOST	Internet Society of Orthopaedic Surgery and Traumatology.
ISP	intraocular silicone prosthesis.
ISPO	International Society for Prosthetics and Orthotics.
ISR	induced systemic resistance.
ISS	Integrated Summary of Safety.
ISS	International Society of Surgery.
ISSC	investigative site support center.
ISSI	Interview Schedule of Social Integration.
IST	insulin shock therapy.
IT	idiopathic thrombocythemia.
IT	individual therapy.
IT	inhalation therapy.
IT	intensive therapy.
IT	intermediate trophoblast.
IT15	interesting transcript 15 in Hungtington disease
ITB	iliotibial band.
ITC	interagency testing committee.
ITP	idiopathic thrombocytopenic purpura.
ITP	ion transport peptide.
ITs	immunotoxins.
ITT	internal tibial torsion.
ITT	interstitial tumor therapy.
ITU	Intensive Therapy Unit.
I-type	intestinal type.
IU	immunizing unit, international units.
IU	intrauterine.
IUCD	intra-uterine contraceptive device.
IUD	intrauterine device.
IUGR	intrauterine growth retardation.
IUP	intrauterine pregnancy.
IUT	intrauterine transfusion.
IV	in vitro.
IV	in vivo.
IV	intervertebral.
IV	intravascular.
Iv	intravenous, intravenous line.
IV	intravenous.
IVC	inferior vena cava.
IVC	intravenous cholangiography.
IVC	isovolumic contraction.
IVCD	intraventricular conduction defect.
IVD	intervertebral disc.
IVDA	intravenous drug addict.
IVDU	intravenous drug use/user.
IVEC	in vitro expression cloning.
IVF	in vitro fertilization.
IVH	intrafascial vaginal hysterectomy.
IVH	intravenous hyperalimentation.
IVH	intraventricular hemorrhage.
IVI	intravenous injection.
IVIG	intravenous immunoglobulin.
IVJC	intervertebral joint complex.
IVP	intravenous pyelogram.
ivpb	intravenous piggyback infusion.
IV-QAR	in vitro quantitative autoradiography.
IVR	idioventricular rhythm.
IVR	iliac vascular resistance.
IVR	immersive virtual reality.
IVR	in vitro released.
IVR	in vivo recovery.
IVR	inhibitor of virus replication.
IVR	interactive voice response.
IVR	intermediate view reprojection.
IVR	intervascular ridging.
IVR	interventional radiology.
IVR	interventional vascular radiology.
IVR	intestinal vascular resistance.
IVR	intramolecular vibrational energy redistribution.
IVR	intrarenal vascular resistance.
IVR	intravaginal ring.
IVR	intravenous regimen.
IVR	intraventricular reentry.
IVR	inverted repeats.
IVR	in-vitro-retinae.
IVR	isovolumetric regulation.
IVR	isovolumic relaxation.
IVR	ivermectin.
IVRA	intravenous regional anesthesia.
IVR-OD	inverted repeat outer domain.
IVSD	interventricular septal defect.
IVU	intravenous urography.
IVUS	intravascular ultrasonography.
IvVD	intravenous administration of high and intermittent doses of calcitriol.
IW	infarction weight.
IWMF	International Waldenstrom's Macroglubulinemia Foundation.
J (39 abbreviations)
JAAD	Journal of the American Academy of Dermatology.
JAAOS	Journal of the American Academy of Orthopaedic Surgeons.
JAB	Journal of Applied Biomechanics.
JACS	Journal of the American College of Surgeons.
Jak(s)	Janus kinase(s).
JAMA	Journal of the American Medical Association.
JAOA	Journal of the American Osteopathic Association.
JBJS	Journal of Bone and Joint Surgery (UK).
JBJS	Journal of Bone and Joint Surgery (US).
JBMR	Journal of Back and Musculoskeletal Rehabilitation.
JCAHO	Joint Commission on Accreditation of Healthcare Organizations.
JCD	Jakob-Creutzfeldt disease.
JCO	Journal of Clinical Oncology.
JCOA	Japanese Clinical Orthopedic Association (Japanese only).
JCT	junction.
JHS	Journal of Hand Surgery (US).
JJ	jaw jerk.
JJC	The Japanese Joint Committee.
JNC	Joint National Committee.
JND	just noticeable difference.
JNMS	Journal of Musculoskeletal System.
JOA	Japanese Orthopaedic Association (UMIN: Japanese only).
JOCD	juvenile osteochrondritis dissecans.
JOS	Internet Journal of Orthopaedic Surgery and related subjects.
JOSPT	Journal of Orthopaedic and Sports Physical Therapy.
JOT	Journal of Orthopaedic Trauma.
JPO	Journal of Prosthetics and Orthotics.
JRA	juvenile rheumatoid arthritis.
JSCAS	Japan Society for Computer Aided Surgery (only Japanese).
JSN	joint space narrowing.
JSOA	Journal of the Southern Orthopaedic Association.
JSR	Journal of Sport Rehabilitation.
JSS	Junior Secondary School.
JT	joint.
JUV	juvenile.
JV	jugular vein.
JV	jugulovenous.
JVD	jugular-venous distension.
JVP	jugular venous pressure; jugular venous pulse.
K (33 abbreviations)
K	potassium.
KA	ketoacidosis.
KASS	Kaneda anterior spinal/scoliosis system.
kb	kilobases (1kb = 1000 nucleic acid bases).
KB	knee bearing amputation.
kcal	kilocalorie (food calorie).
KCl	potassium chloride.
KCS	keratoconjunctivitis sicca.
KD	knee disarticulation.
KEE	Klebsiella spp., E.coli, and Enterobacter soo., the lactose fermentation bacteria that are most commonly isloated from urine.
KFD	Kikuchi-Fujimoto disease.
KFH	Kaiser Foundation Hospital.
KFH	killifish.
KFH	King Fahad Hospital, Riyadh, Saudi Arabia.
KFT	kidney function test.
kg	kilogram.
KGS(17-)	17-ketogenic steroids.
KI	Karolinska Institut (Musculoskeletal Diseases).
KI	potassium iodide.
Ki-67	proliferation index.
KIA	Kliger iron agar.
KID syndrome	keratitis, ichthyosis, and deafness.
KJ	knee-jerk.
KK	knee kick.
KLS	kidney, liver, spleen.
KO	keep open.
KOH	potasium hydroxide.
KR	keratinocytes.
KS(17-)	17-ketosteroids.
KS	Knee Society (AAOS Specialty Societies).
KUB	kidneys, ureters, and bladder.
KVO	keep veins open.
K-wire	Kirschner wire.
L (253 abbreviations)
L&A	light and accommodation.
L&D	labor and delivery.
L&H	lungs and heart.
L&S	liver and spleen.
L&W	living and well.
L	Lactobacillus.
L	lambda.
L	latex.
L	Latin.
L	left.
L	Legionella.
L	Leishmania.
L	length.
L	lente insulin.
L	lethal.
L	leucine.
L	levo-.
L	lidocaine.
L	ligament.
L	light.
L	lingual.
L	Listeria.
L	liter.
L	liver.
L	low.
L	lower.
L	lumbar.
L	luminance.
L	lymph.
L	lymphatic invasion.
L	lymphocyte.
L	outer membrane layer of cell wall of gram-negative bacteria (layer).
L	pound.
L	syphilis (Latin lues).
L/S	lecithin/shingomyelin ratio.
L1 - L5	Lumbar vertebrae 1 - 5 (spine e.g. L1 = 1st lumbar vertebra).
LA	left atrium.
LA	linoleic acid.
LA	local anesthesia.
Lac	laceration.
LAC	long arm cast.
LAD	left anterior descending (coronary artery).
LAD	left axis deviation.
LAD	leukocyte adhesion deficiency.
LAD	ligament augmentation device.
LAD	linoleic acid-deficient.
LAD	low-alcohol-drinking.
LADD	laparoscopic appendectomy and duodenocolonic dissociation.
LADDs	lifetime average daily doses.
LADDs	liquid automatic dishwashing detergents.
Ladd's	syndrome, intestinal obstruction from peritoneal bands.
LAE	long above elbow (cast).
LAH	left atrial hypertrophy.
LAM	laminectomy.
LAM-1	L-selectin adhesion molecule (on leukocytes).
LANC	long arm navicular cast.
lap chole	laparoscopic cholecystectomy.
LAP	left atrial pressure.
LAP	leukocyte alkaline phosphatase.
lap.	laparotomy.
LAR	linoleic acid-rich.
LASIK	laser in-situ keratomileusis.
LAT	lateral (view in x-rays).
lat. flap	latissimus dorsi flap reconstruction.
lat.	lateral.
LATS	long-acting thyroid stimulator.
LB	large bowel.
LB	Lewy body.
LB	Lyme borreliosis.
lb.	pound.
LBB	low back bending.
LBBB	left bundle branch block.
LBCD	left border of cardiac dullness
LBD	Lewy body dementia.
LBL	lecture-based learning.
LBL	lymphoblastic lymphoma.
LBM	lean body mass.
LBO	large bowel obstruction.
LBO	lower body obesity.
LBP	low back pain.
LBP	low blood pressure.
LBT	low back tenderness.
LC	Langerhans' cells.
LC	lymphocyte corona.
LC50	lethal concentration 50%.
LCA	lateral costal artery (branch of internal mammary artery).
LCA	left coronary artery.
LCA	leukocyte common antigen.
LCDCP	limited/low-contact dynamic compression plate.
LCE	leg cycle ergometer.
LCEA	latency corrected ensemble average.
LCEA	lung carcinoma expressed antigens.
LCH	Langerhans cell histiocytocis.
LCIS	lobular carcinoma in situ (breast carcinoma).
LCL	lateral collateral ligament.
LCM	left costal margin.
LCNEC	large cell neuroendocrine carcinoma.
LCSW	licensed clinical social worker.
LCTA	lungs clear to auscultation.
LD	luminance-defined.
LD100	lethal dose 100 %.
LDF	laser Doppler flowmetry.
LDGS	life-death growth standard.
LDH	lactic dehydrogenase.
LDL cholesterol	low-density lipoprotein cholesterol.
LDL	low density lipoprotein.
LDM	lipoatrophic diabetes mellitus.
LDP	lumbo-dorsal pain.
LDRP	Labor Delivery Recovery Postpartum.
LDW	low-dose warfarin.
LE	left eye.
LE	lower extremity.
LE	lupus erythematosis.
LEE	locus of enterocyte effacement.
LEL	lowest effect level.
LES	lower esophageal sphincter.
LF	left foot; linear fracture; low frequency.
LFA	left forearm.
LFA	lymphocyte function-associated antigen.
LFA-1	lymphocyte function-associated antigen 1.
LFB	Luxol fast blue.
LFLA	antilactoferrin latex bead agglutination test.
LFT	liver function tests.
lg	large.
LGA	large-for-gestational age.
LG-ABN	licking/grooming and arched-back nursing.
LGB	lateral geniculate body.
LGI	(see GI) lower gastro-intestinal tract.
LGV	lymphogranuloma venereum.
LH	luteotropic hormone.
LHG	left hand grip.
LHRH	luteinizing hormone-releasing hormone.
LHS	left hand side.
LIc	lacunar ictus.
LIC	left iliac crest.
LIMA	left internal mammary artery.
LIP	lymphoid interstitial pneumonitis.
LIQ	left inner quadrant.
LIR	left iliac region.
LIS	laboratory information system.
LK	left kidney.
LKS	liver, kidney, spleen.
LL	left lateral.
LL	left leg.
LL	left lower.
LL	left lung.
LLB	left lateral bending; long leg brace.
LLC	long leg cast.
LLCC	long leg cylinder cast.
LLD	leg length discrepancy.
LLE	left lower extremity.
LLF	left lateral flexion; left little finger.
LLL	left lower leg; left lower lid.
LLL	lower left lobe (lung).
LLN	lower limit of normal.
LLQ	lower left quadrant (abdomen).
LLR	left lumbar region.
LLS	long leg splint.
LLWC	long leg walking cast.
LLX	left lower extremity.
LM	lentigo maligna.
LMD	left midline deviation; local medical doctor
LMM	lentigo maligna melanoma.
LMN	lower motor neuron (signs).
LMO	local medical officer.
LMP	last menstrual period.
LMWH	low molecular weight heparin.
LN	lupus nephritis.
LN	lymph node.
LOA	left occipitoanterior.
lob	lobular.
LOC	level of care.
LOC	level of consciousness (in Glasgow Coma Scale).
LOC	loss of consciousness.
LOD	limit of detection.
LOD	loss on drying.
LOH	loss of heterozygosity.
LOM	left otitis media; limitation of movement; loss of movement.
LOQ	left outer quadrant.
LOQ	limit of quantification.
LOS	length of stay.
LOS	lipooligosaccaride (endotoxin virulence factor of N. gonorrhoeae).
LOS	loss of sight.
LOT	left occiput transverse.
LOT	ligament of Treitz.
LP	light perception.
LP	lumbar puncture.
LPA	left pulmonary artery.
lpcAB	lipopolysaccharide (LPS) core AB cluster genes.
lpcC	lipopolysaccharide (LPS) core C gene.
LPCC	liver primary cell cultures.
LPD	luteal phase defect.
lpf	low power field.
LPL	lipoprotein lipase.
LPLK	lichen planus-like keratosis.
LPN	licensed practical nurse.
LPS	lipopolysaccharides.
LQ	lower quadrant.
LQTS	long QT syndrome.
LR	lactated Ringer's solution.
LREC	Local Research Ethics Committee (UK).
LRF	Leukaemia Research Fund (UK).
LRFA	Lymphoma Research Foundation of America.
LRQ	lower right quadrant.
LRT	lower respiratory tract.
LRTI	ligament reconstruction tendon interposition (procedure).
LRTI	lower respiratory tract infection.
LS	left side.
LS	liver and spleen.
LS	lumbar spine.
LS	lumbosacral.
LSA	left sacrum anterior.
LSD	lysergic acid diethylamide.
LSF	lateral spread of freeze (of a cryosurgical iceball).
LSIL	low grade squamous intraepithelial lesion.
LSK	liver, spleen, kidney.
LSMFT	liposclerosing myxofibrous tumor.
LSN	lateral spinal nucleus.
LSP	left sacrum posterior.
LSP	lumbar spine.
LSS	lumbar spinal stenosis.
LT	lunotriquetral.
Lt.	left.
LTB4	leukotriene B4.
LTC	long term care.
LTCF	long term care facility.
ltd.	limited.
LTK	laser thermokeratoplasty.
LTR	long terminal repeats.
LTR	lower trunk rotation.
LTRPC	long TRPC.
LUA	left upper arm.
LUE	left upper extremity.
LUL	left upper lobe (lung).
LULA	laparoscopy under local anesthesia.
LUOQ	left upper outer quadrant.
LUP	specimen lipemic, unable to perform.
LUQ	left upper quadrant (abdomen).
LV	left ventricle.
LVAS	left ventricular assist system.
LVEDP	LV end-diastolic pressure.
LVEF	left ventricular ejection fraction.
LVF	left ventricular failure.
LVH	left ventricular hypertrophy.
LVSEM	low-voltage scanning electron microscopy.
LVSF	left ventricular shortening fraction.
LW	Large White (pig).
LX	lower extremity.
LYMP	lymphocyte
LyP	lymphomatoid papulosis.
LYS	life years saved.
Lytes	electrolytes.
LZT	low zone tolerance.
M (666 abbreviations)
8-MOP	8-methoxypsoralen.
M&F	mother and father.
M&M	Morbidity/Mortality.
M	distant metastasis.
M	male.
M	medulla.
M	metal.
m	meter, minim.
M	meter.
M	methionine.
M	Molar.
M	monocytes.
M	mortality.
m	multiple tumors.
M.N.	mononuclear lymphocytes.
M.S.U.	midstream urine; monitored stroke unit.
M/H	medical history.
M0	metastases absent.
M1	metastases present.
M30	antibody against epitope 387-396 AA of cytokeratin.
MA	marketing authorization.
MA	Master of Arts.
MA	medial amygdala.
MA	medical advisor.
MA	medical authorization.
MA	mental age.
MA	moderately advanced.
MA	muscle activity.
MAA	minimum audible angle.
MAbs	maternal derived antibodies.
MAC	macerated.
MAC	maximum allowable concentration.
MAC	membrane attack complex.
MAC	minimum alveolar concentration.
MAC	Mycobacterium avium complex.
MACE	major adverse clinical event.
MACOP-B	methotrexate, doxorubicin, cyclophosphamide, vincristine, prednisone, bleomycin.
MAE	major arrhythmic events.
MAE	median absolute error.
MAE	medical air evacuation.
MAE	medication administration errors.
MAE	microwave-assisted extraction.
MAE	motion aftereffect.
MAE	moves all extremities.
MAE	murine aortic endothelial cells.
MAE	myoclonic absence epilepsy.
MAE	myoclonic-astatic epilepsy.
MAG	myelin-associated glycoprotein.
MAHA	microangiopathic hemolytic anemia.
MAIGA	monoclonal antibody immobilization of granulocyte antigens.
MAJ	major; majority.
MAL	malignant.
MAL	middle axillary line.
MALT	mucosa associated lymphoid tissue.
mammo	mammogram.
MANe	Argosy's Manhattan II, experimentally modified.
MANE	The Morrow Assessment of Nausea and Emesis.
MANOVA	multivariate analysis of variance.
MAO	maximal acid output.
MAO	monoamine oxidase.
MAOI	monoamine oxidase inhibitor.
MAP	mean arterial pressure.
MAPSS	multi angle polarised scatter separation.
MARCM	mosaic analysis with a repressible cell marker.
MAS	manifest anxiety scale.
MAS	meconium aspiration syndrome.
MAS	meconium aspiration.
MASS	massage; massive.
MAST	military antishock trousers.
MAT	maternal.
MAX	maxilla; maximal; maximum.
MB ChB	Degrees of Bachelor of Medicine and Bachelor of Surgery (UK).
MB	muscle balance.
m-BACOD	methotrexate, bleomycin, doxorubicin, cyclophosphamide, vincristine, dexamethasone.
MBC	maximum breathing capacity.
MBC	minimum bactericidal concentration.
mbcr	minor breakpoint cluster region.
MBH	maximum benefit from hospitalization.
MBP	major basic protein.
MBP	myelin basic protein.
MBPC	knee arthroplasty with metal-backed patellar components.
MBs	Mallory bodies.
MBS	Marie-Bamberger syndrome.
MBs	medulloblastomas.
MBs	melanoblastoma.
MBS	modified barium swallow test.
MBs	molecular beacons.
MBs	mushroom bodies.
MBS	myosin-binding subunit.
MC	mast cells.
MC	mixed cellularity (classical Hodgkin lymphoma).
MCA	Medicines Control Agency.
MCA	multiple correspondence analysis.
McAb	monoclonal antibodies.
MCAO	middle cerebral artery occlusion.
MCD	multivessel coronary disease.
mCE	monomeric carboxylesterases.
MCF	monocyte chemotactic factor.
mcg	µg, microgram.
MCH	mean corpuscular hemoglobin.
MCHC	mean corpuscular hemoglobin concentration.
MCHL	mixed cellularity classical Hodgkin lymphoma.
MCI	mandibular cortical index.
mCi	millicurie.
MCI-154	a cardiac Ca2+ sensitizer.
MCI-186	a newly-developed free radical scavenger.
MCI-2016	bifemelane hydrochloride.
MCI-225	a new selective noradrenaline reuptake inhibitor with 5-HT3 receptor blocking action.
MCL	mantle cell lymphoma.
MCL	mast cell leukemia.
MCL	midclavicular line.
MCP	metacarpophalangeal joint.
MCP-1	monocyte chemoattractant protein.
MCS	mast cell sarcoma.
MCS	master cell stock.
MCS	motor conduction studies.
MCS	multiplechemical sensitivity.
MCTD	mixed connective tissue disease.
MCU	medical care utilization.
MCV	mean corpuscular/cell volume (a parameter of red blood cells).
MD	medialis dorsalis.
MD	Medical Doctor.
MD	Meniere's disease.
MD	muscular dystrophy; motion-defined.
MDA	4,4'-methylenedianiline.
MDA	maternal derived antibodies.
MDA	Medical Devices Agency (UK).
MDA	mouse diaphragm assay.
MDC	minimum detectable concentration.
MDD	Medical Devices Directorate (UK).
MDDE	1,1-dichloro-2,2-bis(4-methoxyphenyl)ethene.
MDDe	major depressive disorders, endogenous.
MDGCR	minimal DiGeorge critical region
MDH	malate dehydrogenase.
MDI	meter-dose inhaler.
MDII	multiple daily insulin injections.
MDM-2	mouse double minute protein.
MDR	mitochondrial diazepam binding inhibitor (DBI) receptor.
MDR	multi drug resistant.
MDS	myelodysplastic syndrome.
MDS/MPS	myelodysplastic/myelproliferative syndromes.
MDV	Marek disease virus.
MDV	multiple dose vial.
ME	medical examiner.
ME	middle ear.
MEC	medical ethical committee.
MEC	mitoxantrone, etoposide and Ara-C regimen.
MEC	mitoxantrone, etoposide and Ara-C regimen.
MED	minimum effective dose; medial.
MEDFLAG	Military Medical Exercise.
MEDLARS	medical literature analysis and retrieval system.
Meds	medication.
MEF	maximal expiratory flow.
MEFR	maximal expiratory flow rate.
MEH	medical eye history.
MEIA	microparticle enzyme immunoassay.
MEKO	methyl ethyl ketone.
MEL	melanoma.
MEN I	multiple endocrine neoplasia (1.pituitary; 2.parathyroids; 3.pancreas).
MEN II	multiple endocrine neoplasia (1.thyroid; 2.parathyroids; 3.adrenals).
MEP	motor evoked potentials.
mEq	milliequivalent.
mEq/L	milliequivalents per liter.
MES	microembolic signals.
MESA	myoepithelial sialoadenitis.
MET	methamphetamine.
Met	methionine.
mets	metastases.
MF	marrow fibrosis, myelofibrosis.
MF/MM	myelofibrosis/myeloid metaplasia.
MFD	midforceps delivery; minimum fatal dose.
MFT	muscle function test.
MFU	medical follow up.
MFV	maximum flow velocities.
MFW	multiple fragment wounds.
Mg	Magnesium.
mg	milligram - 0.001 gram.
MG	muscle group.
MG	myasthenia gravis.
MGB	malachite green brucellae medium.
MGB	medial geniculate body.
MGB	Michaelis-Gutmann body.
MGB	micropouch" gastric bypass.
MGB	minor groove binder.
MGB	monoglucuronosyl bilirubin.
MGB	myoglobin.
MgCl2	magnesium chloride.
MGCT	malignant granular cell tumor.
MgD	magnesium-deficient.
MGD	mammary gland density.
MGD	mean glandular dose.
MGd	medial geniculate body dorsal.
MGD	meibomian gland disease.
MGD	mixed gonadal dysgenesis.
MGD	Modulation gap detection.
MGD	molybdopterin guanine dinucleotide.
MGD	monogalactosyl diacylglycerol.
MGD	monolayer growth defect.
MGD	Mouse Genome Database.
MGD	multiglandular disease.
MGD-1	Mediterranean mussel defensin.
MGD1	Mytilus galloprovincialis defensin 1.
MGD-Fe	N-methyl-D-glucamine dithiocarbamate/ferrous sulfate mixture.
MGF	maternal grandfather.
MGG	May-Grünwald-Giemsa stain.
MGGM	maternal great grandfather.
MGUS	monoclonal gammopathy of undetermined significance.
MGv	medial geniculate body ventral.
MH	maleic hydrazide.
MH	malignant histiocytosis.
MH	malignant hyperthermia.
MH	Mannheimia (Pasteurella) haemolytica.
MH	Mantel-Haenszel (test).
MH	marital history.
MH	Mayfield skull pin head holder.
MH	medial hypothalamus.
MH	mediastinal hernia.
MH	medical history.
MH	Medtronic Hall (heart valves).
MH	melanophore hormone.
MH	menstrual history.
MH	mental health.
MH	metal halide.
MH	mild hypoxia.
MH	morbus Hodgkin.
MH	Mueller-Hinton (medium).
mh	multiheaded.
MH	multiply handicapped.
MH	municipal hospital
MHA	May-Hegglin anomaly.
MHA	Mental Health Association.
MHA	microangiopathic hemolytic anemia.
MHA	microhemagglutination
MHAC	Mental Health Act Commission (UK).
MHAM	Mueller-Hinton agar medium.
MHAM	mutiple hamartoma.
MHAQ	Modified Health Assessment Questionnaire.
MHA-TP	microhemagglutination Treponema pallidum.
MHB	maximum hospital benefit.
MHb	methemoglobin.
MHB	Mueller Hinton Base.
MHb	myohemoglobin.
MHBSS	modified Hank balanced salt solution.
MHC	major histocompatibility complex (see HLA).
MHC	Mental Health Care.
MHCA	Managed Health Care Associates.
MHCI	major histocompatibility complex.
MHCS	mental hygiene consultation service.
MHCU	Mental Health Care Unit.
MHD	magneto hydrodynamics (nuclear).
MHD	maintenance hemodialysis.
MHD	mean hemolytic dose.
MHD	Mental Health Department.
MHD	minimum hemolytic dilution.
MHD	minimum hemolytic dose.
MHD	Mulberry heart disease.
MHDP	methylene hydroxydiphosphonate.
MHDPS	Mental Health Demographic Profile System.
MHG	Metropolitan Health Group.
mHg	millimeter of mercury.
MHI	malignant histiocytosis of intestine.
MHI	mental health index.
MHI	mental health information.
MHI	mental health inventory.
MHI	minimal head injury.
MHIQ	McMaster Health Index Questionnaire.
MHL	medial hypothalamic lesion.
MHLC	multidimensional health locus of control.
MH-like BCL	malignant histiocytosis-like B-cell lymphoma.
MHLS	metabolic heat load stimulator.
MHLW	Ministry of Health, Labor and Welfare.
MHN	massive hepatic necrosis.
MHN	Mohshardness Number.
MHN	morbus hemolyticus neonatorum.
MHO	microsomal heme oxygenase.
MHP	1-mercury 2-hydroxypropane.
MHP	hemiplegic migraine.
MHP	Maternal Health Program.
MHP	Medical Center Health Plan.
MHP	Metropolitan Health Plan.
MHP	monosymptomatic hypochondriacal psychosis.
MHPG	3-methoxy-4-hydrophenylglycol.
MHR	maximal heart rate.
MI	mental foramen.
MI	mental illness.
mi	microphtalmia gene.
MI	mitral insufficiency.
MI	myocardial infarction.
MIA	medically indigent adults.
MIA	missing in action.
MIA	multi-institutional arrangements.
MIB1	antibody against Ki-67 (a proliferating marker).
mIBG	Radioactive Iodine Metaidobenzoguanidine (mIBG scans or mIBG therapy).
MIBI	(99mTc-MIBI or setamibi) Technetium-99m 2-methoxyisobutylisonitrile.
MIBI	methoxyisobutylisonitrile( as in 99mTc-MIBI or setamibi = Technetium-99m 2-methoxyisobutylisonitrile).
MIC	expressed as or volume percentage (
MIC	minimum inhibitory concentration of an antibacterial drug.
MICE	Medical Insurance Claim Examiner.
MICU	mobile intensive care unit.
MID	maximum inhibitory dilution.
MID	mesioincisodistal.
MID	minimum infective dose.
MID	minimum inhibitory dose.
MID	minimum irradiation dose.
MID	multi-infarct dementia.
MID	multiple ion detection.
MIDCAB	minimally invasive directed coronary bypass.
MIDD	renal monoclonal immunoglobulin deposition disease.
MIF	maximal inspiratory flow.
MIFR	maximal inspiratory flow rate.
MIH	maturation-inducing hormone.
MIH	medication-induced headache.
MIH	molt-inhibiting hormone.
MIH	mullerian inhibiting hormone.
MIH	myointimal hyperplasia.
MIN	mammary intraepithelial neoplasia.
MIN	minimal; minor.
min.	minimum, minutes.
MIP	maximum intensity projection.
MIRL	membrane ingibitor of reactive lysis (CD59).
MIS	maximal isometric strength.
MIS	melanoma in situ.
MIS	minimal incision surgery.
MIS	minimally invasive surgery.
MISS	minimally invasive spinal surgery.
MIT	monoiodotyrosine.
Mitf	microphtalmia transcription factor.
MIV	impurities and volatile matter.
MIV	major injury vector.
MIV	major interspecific variant.
MIV	maternal intravenous administration.
MIV	mature intermediate villi.
Miv	matured in vitro.
MIV	maximal isocapnic ventilation.
MIV	maximization of interclass variance.
MIV	maximum increase value.
MIV	mean integrated voltage.
MIV	mean number of infective vector.
MiV	Miltenberger class V-like molecule (a human glycophorin variant).
MIV	minimal inhibitory volumes.
MIV	minimum immobilizing viscosity.
MIV	mitoxantrone, ifosfamide, and etoposide (chemotherapy).
Miv	mitral valve.
MIV	mivacurium.
MIV	Mivazerol.
MIV	mosquito iridescent virus.
MIV	multivalent influenza vaccine.
Miv-CC	mMicrohodotermes viator corpus cardiacum peptide.
MK	marked.
MK	megakaryocyte.
MKV	measles, killed vaccine.
ML	maximum to left.
ML	midline.
ml	milliliter 0.001 liter.
MLAT	Mutual Legal Assistance Treaty.
MLC	minimum lethal concentration.
MLD	minimum lethal dose.
MLD	minimum lumen diameter.
MLE	mariner-like elements.
MLMP	mucinous tumor of low malignant potential.
MLO	mediolateral oblique.
MLR	mixed lymphocyte reaction.
MLU	mean length of utterance (a standard by which speech development is measured).
ML-VRI	mandibular lingual vertical releasing incisions.
mm Hg	millimeters of Mercury
MM	malignant melanoma.
mm	millimeter - 0.001 meters.
mM	millimole.
MM	mucous membrane.
MM	multiple myeloma.
MM	murmur.
MM	muscle mass.
MM	muscles.
MMA syndrome	metritis-mastitis-agalactia syndrome.
MMA	marketing authorization application.
MMA	mastitis, metritis, agalactia.
MMA	medical management analysis.
MMA	medical materials account.
MMA	methyl methacrylate.
MMA	methylmalonic acid.
MMA	middle meningeal artery.
MMA	minor morphologic aberration.
MMA	mono-methyladenosine.
MMA	multiple module access.
MMAAP	monomethylaminoantipyrine.
MMEFR	maximum mid expiratory flow rate.
MMF	maximal midexpiratory flow.
MMFR	maximal midexpiratory flow rate.
MMG	mammogram.
MMG	mechanomyography.
MMI	maximum medical improvement.
MMI	methimazole.
MMM	mixed malignant mesothelioma.
MMMT	malignant mixed mesodermal tumor.
MMP	matrix metalloproteinase.
MMPI	Minnesota multiphasic personality inventory.
MMR	live, attenuated measles-mumps-rubella vaccine.
MMS	Mohs micrographic surgery.
MMSE	mini-mental state examination.
MMST	muscle strength.
MMT	manual muscle test.
MMTS	maximum mean total score.
MMTS	methylmethanethiosulfonate.
MMVA	methylmevinolinic acid.
MN	malignant neoplasm.
MND	dementia with motor neuron disease.
MNJ	1-deoxymannojirimycin.
MNJ	myoneural junction (disease).
MO	metal oxide.
mo	month.
MOC	maintenance of certification.
MOD	medical officer of day; moderate.
MOD	moderate.
MODEMS	Musculoskeletal Outcomes Data Evaluation and Management System.
MOF	Multiple Organ Failure.
MOI	mechanism of injury.
mol wt	molecular weight.
MOL	more or less.
MOM	milk of magnesia
mono	monocytes.
MOP	methoxypsoralen.
MOPP	mechlorethamine, vincristine (Oncovin), procarbazine, and prednisone (combination of drugs used for treatment of Hodgkin's disease).
mOsm	milliosmole.
MP(6-)	6-mercaptopurine (anti cancer drug).
MP	melphalan and prednisone.
MP	menstrual period.
MP	metacarpal phalangeal (also MCP).
MP	metatarsalphalangeal joint.
MPA	medroxyprogesterone acetate.
MPA	microscopic polyangiitis.
MPC	maximum permissible concentration.
MPC	methacryloyloxyethyl phosphorylcholine.
MPC	methoxypropyl cyanoacrylate.
MPC	mucopurulent cervicitis.
MPCM	maculopapular cutaneous mastocytosis.
MPD	(chronic) myeloproliferative disorder.
MPD	maximum permissible dose.
MPD	myeloproliferative disorders.
MPEG	Moving Picture Experts Group.
MPF	maturation-promoting factor.
MPGN	membranoproliferative glomerulonephritis.
MPH	midparental height.
MPK	Minipig Kidney cell line.
MPL	Maclura pomifera.
MPL	mouse potency level.
MPO	Medical and Pediatric Oncology (journal).
MPO	myeloperoxidase.
MPOA	medial preoptic area.
MPP	multipurpose phantoms.
MPS	mononuclear phagocyte system.
MPS	myeloproliferative syndromes.
M-PST	monoamine-sulfating form of sulfotransferases.
MPT	mean peripheral temperature.
MPT	mechanical pain threshold.
MPT	mechanical pressure therapy.
MPT	Methylphenidate treatment.
MPT	modified physiotherapy.
mPT	mutant pertussis toxin.
MPTP	1-methyl-4-phenyl-1,2,4,6-tetrahydropyridine, a synthetic narcotic related to meperidine that selectively destroys dopaminergic neurons of the substantia nigra (considered a "designer drug").
MPV	mean platelet volume.
MPXI	neutrophil myeloperoxidase activity.
MR	maximum to right.
MR	mental retardation.
MR	mitral regurgitation.
MR	mutual recognition.
MRA	magnetic resonance angiography.
MRA	mycoplasma removal agent.
MRC	Medical Research Council (UK).
MRCAS	(Center for) Medical Robotics and Computer Assisted Surgery.
MRCGP	membership examination of the Royal College of General Practitioners.
MRD	Medical Records Department.
MREC	Multi-center Research Ethics Committee (UK).
MRG	murmurs, rubs or gallops.
MRI	magnetic resonance imaging.
MRKH	Mayer-Rokitansky-Kuster-Hauser syndrome.
MRL	maximum residual limits.
MRM	Modified Radical Mastectomy.
MRN	magnetic resonance neurography.
mRNA	messenger RNA.
MRSA	Methicillin resistant Staphylococcus aureus.
MRT	mean residence time.
MRV	magnetic resonance venography.
MS	mass spectrometry.
MS	medical student.
MS	minor surgery.
MS	mitral stenosis.
MS	morphine sulfate.
MS	multiple sclerosis.
MSAFP	maternal serum α-fetoprotein.
MSC	glomerular mesangium cell.
MSC	macrocystic serous cystadenoma (of the pancreas).
MSC	macrodactyly simplex congenita.
MSC	magnitude squared coherence.
MSC	magnocellular neurosecretory cell.
MSC	major septic complications.
MSC	major symptom complex.
MSC	malignant spindle-shaped cells.
MSC	mammosomatotroph cells.
MSC	mantle storage cells.
MSC	marrow stromal cells.
MSc	Master of Science.
MSC	Materials Services Center.
MSC	maternal serum cortisol.
MSC	maxillary sinus carcinoma.
MSC	Meadowlands Sports Complex.
MSC	meat starter culture.
MSC	mechanosensitive ion channels.
MSC	medial septum cholinergic (neurons).
MSC	medial septum complex.
MSC	mediastinoscopy.
MSC	Medical Sciences Campus.
MSC	Medical Service Corps.
MSC	medical smart card.
msc	meiotic sister-chromatid recombination.
mSC	membrane secretory component.
MSC	Mercurascan.
MSC	mesangial cells.
MSC	mesencephalon.
MSC	mesenchymal stem cells.
MsC	mesothelial cells.
MSC	methylselenocysteine.
MSC	middle subcutaneous (adipose tissue).
MSC	midpalatal suture cartilage.
MSC	mid-systolic click.
MSC	migrating spike complexes.
MSC	milk somatic cell.
msc	milliseconds.
MSC	miniature squamous cells.
MSC	minimal sporocidal concentrations.
MSC	minimum significant change.
MSC	minimum spirocheticidal concentration.
MSC	modified sampling connections.
MSC	modified semi-circular (spot electrode array).
MSC	modified synaptonemal complexes region.
MSC	molecular shape comparison.
MSC	Moloney sarcoma cell.
MSC	monocyte synergistic cytotoxicity.
MSC	monosynaptic connection.
MSC	morphine sulphate Contin.
MSC	motile sperm count.
mSC	motor layers of the superior colliculus.
MSC	motor-sensory cortex.
MSC	mouse spinal cord.
MSC	mouse splenocytes.
MSC	MS Contin tablets.
MSC	Mucosal Starter Culture.
MSC	Multimedia Super Corridor.
MSC	multiple synchronous cancer.
MSC	multiplicative scatter correction.
MSC	multipotential subserosal cells.
MSC	multipurpose silastic catheters.
Msc	muscimol.
MSC	muscle satellite cells.
MSC	muscle score.
MSC	musculoskeletal.
MSC	myelin-forming Schwann cells.
MSC	myeloid suppressor cells.
MSC80	mouse Schwann cell line.
MSC-LSMS	mid-systolic click-late systolic murmur syndrome.
mSCs	miniature synaptic currents.
MSCT	Multi-Slice CT (scan).
MSDS	material safety data sheet.
MSF	Médecins Sans Frontières.
MSG	monosodium glutamate, a food additive causing neuronal necrosis in mice, in high doses.
MSH	melanocyte-stimulating hormone.
MSL	midsternal line.
MSLT	multiple sleep latency test.
MSM or DMS	methylsulfonylmethane or dimethylsulfone (CH3SO2CH3).
MSO4	morphine sulfate.
MSOA	Missouri State Orthopaedic Association.
MSP	methylation-specific polymerase chain reaction.
MSSE	Medicine & Science in Sports & Exercise.
MSSU	mid stream specimen urine.
MST	mean survival time.
MST	median survival times.
MST	morphine sulfate tablets.
MSTI	multiple soft tissue injuries.
MSU	midstream specimen of urine.
MSU	monosodium urate.
MSV	master seed virus.
MSW	Mallory-Weiss syndrome.
MSW	Master in Social Work.
MSW	municipal solid waste.
MT	manual traction; maximal therapy; more than; muscles and tendons; muscle test.
MTAL	medullary thick ascending limb.
MTBI	mild traumatic brain injury.
MTD	maximum tolerated dose - phase 1 studies.
MTO	methyltrioxorhenium.
MTOC	microtubule organizing centers.
MTP	metatarsal-phalangeal.
MTR	magnetization transfer ratio.
MTR	masses, tenderness, rebound.
MTRG	masses, tenderness, rebound, guarding.
MTS	Musculoskeletal Tumor Society (AAOS Specialty Societies).
MTSS	medial tibial stress syndrome.
MTX	methotrexate (anti cancer drug).
MUA	manipulation under anaesthesia.
MUA	medically underserved area.
MUAP's	motor unit action potentials.
MUC	maximum use concentration.
MUD	matched unrelated donor - for bone marrow transplant.
MUG	4-methylumbellyferyl-*-D-glucuronide.
MUGA	multigated acquisition (scanning).
MUO	myocardiopathy of unknown origin.
MUP	maximum urethral pressure.
MUP	mouse urinary protein.
MUS	muscle.
MUSOC	Musculoskeletal Ultrasound Society.
mV	mean velocity.
MV	medial vestibular nucleus.
MV	mitral valve.
MVA	malignant ventricular arrhythmias.
MVA	manual vacuum aspiration.
MVA	marginal vascular arcade (about intestines).
MVA	market value added.
MVA	massive volume administration.
MVA	maximal voluntary activation.
MVA	Maximum Volunteer Activity (software).
MVA	mechanical ventricular assistance.
MVA	medioventral area.
MVA	medullary ventral areas (about medulla oblongata).
MVA	Megabalanus volcano.
MVA	mesopic visual acuity.
Mva	Methanococcus vannielii.
MVA	mevalonic acid.
MVA	mevalonic aciduria.
MVA	Mevinolinic acid.
MVA	microvascular anastomosis.
MVA	microvascular angina.
MVA	microvascular architecture.
MVA	microvillous atrophy.
mva	min of visual angle.
MVA	minimum visible angle.
MVA	mitral valve area.
MVA	modified vaccinia virus Ankara.
MVA	Montserrat volcanic ash.
MVA	mosaic variegated aneuploidy.
MVA	motor vehicle accident.
MVA	multiple vessel angioplasty.
MVA	multivariate analysis.
MVA	multivesicular aggregates.
MVA	myelo-vertebral abnormalities.
MVA-1	agglutinin isolated from the hemolymph of the acorn barnacle, Megabalanus volcano.
MVA-2	agglutinin isolated from the hemolymph of the acorn barnacle, Megabalanus volcano.
M-VAC	methotrexate, vinblastine, doxorubicin, cisplatin.
MVc	caudal part of the medial vestibular nucleus.
MVC	maximum voluntary contraction.
MVC	methotrexate, vinblastine and cisplatin.
MVC	microvascular cells.
MVC	microvessel count.
MVC	microvillar cells (in the olfactory epithelium).
MVC	minute virus of canines.
MVC	motor vehicle collision/crash.
MVMT	movement.
MVP	mitral valve prolaps.
MVR	mitral valve replacement
MVV	maximum volume ventilation; maximum voluntary ventilation.
MW	Megawatt.
MW	molecular weight.
Mx	metastases unknown.
MX	metastasis cannot be, or has not been, assessed.
MYH11	smooth muscle myosin heavy chain (gene 16p13).
myop.	myopia.
MZ	marginal zone.
MZL	mantle zone lymphoma.
MZPC	mezlocillin.
N (368 abbreviations)
N&M	nerves and muscles.
N&T	nose and throat.
N&V	nausea and vomiting.
N	asparagine.
N	Nitrogen.
N	normal (concentration of solution).
N	regional lymph node metastasis.
N/A	not applicable.
N/C	nucleocytoplasmic area ratio.
N/T	numbness and tingling.
N/V	nausea and vomiting.
N/V/D/C	nausea/vomiting/diarrhea/constipation.
NA	no abnormalities.
NA	not admitted.
NA	not applicable.
NA	not available.
Na	sodium.
NAA	no apparent abnormalities.
NAACCR	North American Association of Central Cancer Registries.
NAAOP	National Association for the Advancement of Orthotics & Prosthetics.
NABCO	National Alliance of Breast Cancer Organizations.
NABS	normoactive bowel sounds.
NaC	Na channels.
NAC	N-acetyl-L-cysteine.
NAC	nascent polypeptide associated complex.
NAC	nitrogen assimilation control protein.
NAC	non-amyloid component (of Alzheimer's disease amyloid), alpha-synuclein.
Nac	nucleus accumbens.
NaCl	sodium chloride.
NACP	non-amyloid-beta-component precursor (a.k.a. synuclein).
NAD	nicotinamide adenine dinucleotide.
NAD	no active disease.
NAD	no acute disease.
NAD	no acute distress.
NAD	no apparent distress.
NAD	nothing abnormal detected.
NADP	nicotinamide-adenine dinucleotide phosphate.
NADW	National Arthritis Data Workgroup.
Na-HOR	sodium hornan.
NAI	no acute infection.
NANA	N-acetylneuraminic acid.
NAON	National Association of Orthopaedic Nurses.
NAOT	National Association of Orthopaedic Technologists.
NAPRA	National Association of Pharmacy Regulatory Authorities.
NAR	narcotic.
NAR	no action required.
NARD	National Association of Retail Druggists.
NARD	Netherlands Centre for Monitoring of Adverse Reactions to Drugs.
NARD	no apparent respiratory distress.
NARD	nominal absorbed radiation dose.
NAS	National Academy of Sciences.
NASH	nonalcoholic steatohepatitis.
NASPEM	North American Society for Pediatric Exercise Medicine.
NASS	North American Spine Society (also: AAOS Related Organizations).
NAT	nucleic acid amplification testing.
NATA	National Athletic Trainers Association.
NaTT	sodium tetrathionate.
NB	nail bed.
NB	neuro Behçet.
NB	neuroblastoma.
NB	neurometric battery.
NB	newborn.
NB	nitrous oxide-barbiturate.
NB	normoblast.
NB	(Lat. nota bene) note well.
NB	nutrient broth.
NBI	no bone injury.
NBM	nothing by mouth.
NBP	non-invasive blood pressure.
NBS	normal breath sounds.
NBSS	The Canadian National Breast Screening Study.
NC	no change.
NC	no complaint.
NC	non-contributory.
NC	nuclear cytoplasmic (ratio).
NC/AT	normocephalic/atraumatic.
NCBI	National Center for Biotechnology Information (US).
NCC	National Competition Council (AU).
NCC	National Consumer Council (UK).
NCC	National Coordinating Center.
NCCF	National Childhood Cancer Foundation (USA).
NCCI	National Consultative Committee on Immunization.
NCCI	nervi corpori cardiaci interni.
NCCI	noncardiac cerebral ischemia.
NCCLS	National Committee for Clinical Laboratory Standards.
NCD	not considered disabling.
NCEP	National Cholesterol Education Program.
NCHS	National Center for Health Statistics.
NCI	National Cancer Institute (USA).
NCNS	no complications, no sequelae.
NCO	no complaints offered.
NCPP	National Collaborative Perinatal Project.
NCR paper	no carbon required paper.
NCR	no cardiac resuscitation.
NCRA	National Cancer Registrars Association (USA).
NCS	neocarzinostatin.
NCS	nerve conduction studies.
NCV	nerve conduction velocities.
NCV	non-cholera vibrios.
NCV	nuclear coefficient of variance.
ND	non distended.
ND	nondisabling.
NDA	new drug application.
NDF	neutral detergent fiber.
NDSAC	National Drug Scheduling Advisory Committee (Canada).
NE	nerve ending.
NE	neurologic examination.
NEC	necrotizing enterocolitis.
NEC	Nursing Education Coalition.
NECCR	North of England Children's Cancer Research Unit.
NED	no effort detected.
NED	no evidence of disease.
NEFA	non-esterified fatty acids.
neg	negative.
NEJM	New England Journal of Medicine.
NEO	neostigmine.
NEP	neutral endopeptidase 24.11.
NER	no evidence of recurrence.
NERD	no evidence of recurrent disease.
NETA	norethisterone acetate.
Neuro	neurology, neurological
NFP	neurofilament protein.
NFR	not for resuscitation.
NFRA	National Fibromyalgia Research Association (US).
NFs	neurofilaments.
ng	nanogram (millimicron) - 0.000000001 gram.
NG	N-G, nasogastric.
NGO	Non-Governmental Organization.
NGT	nasogastric tube.
NGU	nongonococcal urethritis.
NH	natural health.
NH	neurologic history.
NH	neuropsychiatric hospital.
NH	nursing home
NHANES II	Second National Health and Nutrition Examination Survey.
NHANES	National Health and Nutrition Examination Survey.
NHIS	National Health Interview Survey.
NHL	non Hodgkin's lymphoma.
NHP	natural head position.
NHS	National Health Service.
NHSCR	National Health Service Central Registry (UK).
NIA	National Institute on Aging.
NIAMS	National Institute of Arthritis and Musculoskeletal and Skin Diseases (US).
NICU	neonatal intensive care unit.
NICU	neurointensive care unit.
NIDA	National Institute on Drug Abuse.
NIDDM	non insulin-dependent diabetes mellitus, type II.
NIDRR	National Institute on Disability and Rehabilitation Research.
NIF	negative inspiratory force.
NIH	National Institute of Health (US).
NII	neuronal intranuclear inclusion.
NIL	nothing.
NIMH	National Institute of Mental Health.
NIP	no infection present; no inflammation present.
NIPB	non-invasive blood pressure.
NIR	near infrared.
NIRS	Near Infrared Spectroscopy.
NIRVANA	NIR Vascular Advanced North American.
NISMAT	Nicholas Institute of Sports Medicine and Athletic Trauma.
NIV	non-invasive ventilation.
NK	natural killer cells (large lymphocytes, part of the immune system).
NK	not known.
NKA	no known allergies.
NKCA	National Kidney Cancer Association (USA).
NKD	no known disease.
NKDA	no known drug allergies.
NKHS	non-ketotic hyperosmolar syndrome.
NL	normal limits.
NL	normal.
NL/NP	non-lactating/non-pregnant.
NL/P	nonlactating/pregnant.
NLG	natural latex gloves.
NLG	nerve conduction velocities.
NLG	Nictitans lacrimal gland.
NLG	noreleagnine.
NLM	National Library of Medicine (part of NIH).
NLP	no light perception; normal light perception.
NLPHL	nodular lymphocyte predominant Hodgkin lymphoma.
NLS	nuclear localization signal.
NLT	not lower than.
NM	neuromuscular.
NM	nodular melanoma.
NM	not measured.
NM	not mentioned.
NMA	neurogenic muscular atrophy.
NMBA	neuromuscular blocking agent.
NMDA	N-methyl-D-aspartate.
NMdNM	N-methyl-1-deoxynojirimycin.
NMDP	National Marrow Donor Program.
NMJ	neuromuscular junction.
NMKI	Nordic Committee for Food Analysis.
NMR	nuclear magnetic resonance (scan).
NMS	neuroleptic malignant syndrome.
NMSC	non melanoma skin cancer.
nmSC	nonmyelinating Schwann cells.
NMSC	nonmyelin-forming Schwann cells.
NMSS	National Multiple Sclerosis Society.
NMT	not more than.
NMZL	nodal marginal zone b-cell lymphoma.
NN	neonatal; nerves; nurse notes.
NNFF	National Neurofibromatosis Foundation (USA).
NNP	4-hydroxy-3.5-dinitrophenyl.
NNP	diabetic non-neuropathic.
NNP	neonatal nurse practitioners.
NNP	nerve net pulses.
NNP	N-nitroso-2-nitrophenacetin.
NNP	N-nitrosopiperidine.
NNP	N-nitrosopropranolol.
NNP	N-nitrosopyrrolidine.
NNP	non-histone nuclear proteins.
NNP	non-neoplastic pneumopathy.
NNP	nonneoplastic polyps.
NNP	non-pregnant normotensive women.
NNP	normal non-pregnant.
NNP	nose/nasopharynx.
NNP	sodium nitroprusside.
NNP-1	novel nuclear protein (HGMW-approved symbol D21S2056E).
NNPs	nerve net pulses.
NNR	not necessary to return.
NNT	number needed to treat.
NO	nitric oxide.
no	number.
NO2	nitrogen dioxide.
NOAEL	no observable adverse effect level.
NOC	night.
NOD	non-obese diabetic.
NOEL	no observable effect level.
NOF	National Osteoporosis Foundation.
NOF	neck of femur.
NOHA	Nominal Ocular Hazard Area.
NOK	next of kin.
NONAS	number of non-aligned proximal tooth surfaces.
non-IgSF	non-Ig superfamily.
NONMEM	nonlinear mixed effect model.
NOP	no ocular pain; not otherwise provided for.
NORD	National Organization for Rare Disorders (USA).
NOS	nitric oxide synthase.
NOS	no organisms seen.
NOS	not on staff;
NOS	not otherwise specified.
NotI	restriction enzyme from Nocardia otitidis-cavarium.
NOV	Nederlandse Orthopaedisch Vereniging (Dutch Orthopaedic Association).
NP	nasopharynx; neuropathology; not palpable.
NP	nonpreferring (alcohol).
NP	nurse practitioner.
NPBE	non-protein-bound estradiol.
NPC	nasopharyngeal carcinoma.
NPC	no previous complaint
NPCMD	p-nitrophenoxycarbonyl methyl disulfide.
NPD	no pathologic diagnosis.
NPDL	nodular poorly differentiated lymphocytes.
NPH	neutral protamine Hagedorn - an intermediate acting insulin.
NPH	no previous history.
NPI	National Program of Immunization.
NPI-NH	neuropsychiatric inventory/nursing home.
NPN	nonprotein nitrogen (BUN and creatinine).
nPNA	normalized protein nitrogen appearance rates.
NPO MN	nothing by mouth after midnight.
NPO	nil per os - nothing by mouth.
NPP	National Population Policy.
NPT	normal pressure and temperature.
NPV	negative predictive value.
NQMI	non-Q-wave myocardial infarction.
NQWMI	non-Q-wave myocardial infarction.
NR	nerve root.
NR	not recommended.
NR	not remarkable.
NRBC	nucleated red blood cells.
NRC	National Research Council.
NRCS	Natural Resources Conservation Service.
NRCT	National Registry of Childhood Tumors (UK) held by the CCRG at Oxford.
NRI	nerve root involvement or irritation.
NRL	natural rubber latex.
NRM	normal range of motion.
NRN	no return necessary.
NROM	normal range of motion.
NRT	nicotine replacement therapy.
NRTI	nucleoside analogue reverse transcriptase inhibitors.
NS	nephrotic syndrome.
NS	nerves; neurosurgery; no show, nonspecific.
NS	nodular sclerosis (classical Hodgkin lymphoma).
NS	nonserrated cells (type of basal epidermal cells).
NS	normal saline (solution).
NS5A	nonstructural protein 5A.
NSA	no significant abnormalities.
NSAD	no sign of significant disease.
NSAID	non-steroidal anti-inflammatory drugs.
NSC	neurosecretory cells.
NSC	no significant change.
NSCIA	National Spinal Cord Injury Association.
NSCLC	non-small cell lung cancer.
NSD 2023	gamma-morpholino-butyrophenone (a monoamine oxidase inhibitor).
NSD 3004	2-amino-4-phenylsulphonylbenzenesulphonamide.
NSD	N-acetylneuraminic acid (NANA) storage disorders.
NSD	Nairobi sheep disease.
NSD	nasal septal deformity.
NSD	neurosecretory dysfunction.
NSD	neurosensory deficit.
NSD	night shift dose.
NSD	nigrostriatal degeneration.
NSD	nitrofurazone soluble dressing.
NSD	no significant defect.
NSD	no significant differences.
NSD	no sleep deprivation.
NSD	nominal standard dose.
NSD	non surgical doctors.
NSD	nonsegmental defect.
NSD	non-soap detergent.
NSD	non-specific damage.
NSD	non-specific defense.
NSD	nonspecific dermatitis.
NSD	non-specific duodenitis.
NSD	non-sudden death.
NSD	nonsuicidal depressed.
NSD	nonsyndromic prelingual deafness.
NSD	normal sodium dialysate.
NSD	normal spontaneous delivery.
NSD	normal-coordinate structural decomposition.
NSD	normalized slope descriptors.
NSD	normalized spin density.
NSD	normalized standard deviation.
NSD	normal-salt diet.
NSD	normotensive sedentary.
NSD	number of step-down.
nsd-1	nonsusceptibility to DNV-1 (a recessive gene in the silkworm, Bombyx mori).
NSD-1015	3,4-hydroxybenzyl-hydrazine dihydrochloride.
NSD-1055	aromatic L-amino acid decarboxylase (AADC) inhibitor.
nsd-2	nonsusceptibility to DNV-2 (a recessive gene in the silkworm, Bombyx mori).
NSDD-38	National Security Decision Directive-38.
NSE	neuron-specific enolase - a neural marker.
NSE	non-specific esterase.
NSF	no significant findings.
NSG	nursing.
NSH	National Health Service (UK).
NSHD	nodular sclerosing Hodgkin's disease.
NSHL	nodular sclerosis classical Hodgkin lymphoma.
NSI	no sign of infection, inflammation.
NSM	neurosecretory material.
NSMI	National Sports Medicine Institute of the United Kingdom.
NSR	non significant result.
NSR	normal sinus rhythm.
NSS	normal saline solution; normal size and shape.
NSVD	normal spontaneous vaginal delivery.
NSX	N4-acetylsulfisoxazole.
NSx	neonatally splenectomized (animals).
NT	naso-tracheal; nerve treatment; normal temperature; no test, not tested.
NT	non tender.
NT	normal range.
nt	nucleotide.
NTD	neural tube defect.
NTG	nitroglycerine.
NTLI	neurotensin-like immunoreactivity.
NTM	nontuberculous mycobacteria.
NTP	National Toxicology Program.
NTP	normal temperature and pressure.
NTS	nucleus tractus solitarius.
N-type	null type.
NUFIP	nuclear FMRP-interacting protein.
NV	nausea vomiting.
NV	neurovascular.
NVD	nausea, vomiting, diarrhea.
NVI	iris neovascularization.
NWB	non-weight bearing.
NWDA	National Wholesale Druggists' Association.
NWOTA	North West Orthopaedic Trainees Association
NXG	necrobiotic xanthogranuloma.
NYD	not yet diagnosed.
NYHA	New York Heart Association.
O (270 abbreviations)
O&E	observation and examination
O&P	ova and parasite
O.&A.	odontectomy and alveolectomy
O/E	on examination.
O:	objective.
O'p-DDD	mitotane.
O2	oxygen
OA	occiput posterior.
OA	osteoarthritis.
OAP	osteoarthropathy.
OARG	Osteoporosis and Arthritis Research Group.
OARS	Osteoarthritis Research Society.
OATA	Ohio Athletic Trainers Association.
OATS	osteochondral autograft transfer system.
OB	obstetrics.
OB/OJ ratio	overbite (OB) and horizontal overjet (OJ) ratio.
Ob-GYN	obstetrics and gynecology.
OBJ	object; objective.
OBL	oblique.
OBP	ova, blood and parasites.
OBS	observer.
OBS	obstetrics.
OBS	organic brain syndrome.
OC	obsessive/compulsive.
OC	on call
OC	oral contraceptive; office call.
OCC	occasionally.
OCC	occiput.
OCC	occupation.
OCD	obsessive-compulsive disorder.
OCD	osteochrondritis dissecans.
OCE	comprehensive exam.
OCE	observable cholinomimetic effects.
OCE	odd-carbon fatty acid enriched.
oCE	oligomeric carboxylesterases.
OCE	oral conjugated estrogens.
OCE	osteocartilaginous exostoses.
OCEs	Oct-containing composite elements.
OCF	occipital-frontal circumference.
OCG	oral cholecystogram.
OCP	oral contraceptive pills.
OCS	open canalicular system (about platelets).
OD	(oculus dexter) right eye.
OD	occupational disease.
OD	officer of the day.
OD	once daily.
OD	optic density.
OD	outer diameter.
OD	overdose.
ODA	on day of admission.
ODN	oligodeoxynucleotide.
ODS	Oswestry Disability Score.
OE	on examination; orthopedic examination; otitis externa
OECI	Organization of European Cancer Institutes.
OES	old English sheepdog.
OFFA	Orthopaedic Foundation for Animals.
OGE	U.S.Office of Government Ethics.
OGTT	oral glucose tolerance test.
OH	occupational history.
OHCS(17-)	17-hydroxcorticosteroids.
OHS	open heart surgery.
OIA	optical immunoassay.
OIF	Osteogenesis Imperfecta Foundation.
Oint	ointment.
OJ	isoleucyl-tRNA synthetase.
OJ	obstructive jaundice.
OJ	orange juice.
OJ	Orthodontist Judgment.
OJ	overjet (type of maloclusion).
OL	open label.
OLSNA	Orthopaedic Laser Society of North America.
OM	obtuse marginal artery.
OM	occupational medicine.
OM	osteopathic manipulation.
OM	otitis media.
OMCTS	octamethylcyclotetrasiloxane.
OMS	osteomyelosclerosis.
ON	optic neuritis.
ONC	oncology.
ONDCP	Office of National Drug Control Policy.
ONFH	osteonecrosis of the femoral head.
OO	osteoid osteoma.
OOB	out of bed.
OOH	out of hospital.
OOP	out of plaster.
OP	occiput posterior.
OP	operation.
OP	opponens pollicis.
OP	out patient.
OPC	oculopalatocerebral (syndrome).
OPC	outpatient clinic.
OPCA	olivopontocerebellar atrophy.
OPCD	olivopontocerebellar degeneration.
OPCOS	oligomenorrheic polycystic ovary syndrome.
OPD	obstetric prediabetic.
OPD	optical path difference.
OPD	otopalatodigital (syndrome).
OPD	outpatient department.
OPD	outpatient dispensary.
OPD	p-phetiylenediamine.
OpDent	operative dentistry.
OPDG	ocular plethysmodynamography.
OPG	ocular pneumoplethysmography.
opg	opening.
OPG	orthopantomograin.
OPG	osteoprotegerin.
OPG	oxypolygelatin.
OPH	obliterative pulmonary hypertension; ophthalmia.
OPH	Oph ophthalmology; ophthalmoscopy, ophthalmoscope.
OPHC	Office of Prepaid Health Care.
OphD	Doctor of Ophthalmology.
Ophth	ophthalmology.
OPI	obliteration prediction index.
OPI	oculoparalytic illusion; Omnibus Personality Inventory.
OPI	opiates.
OPI	osteoblastic proliferation index.
OPI	overproduction inhibition.
OPIDN	organophosphorus-induced delayed neuropathy.
OPK	optokinetic.
OPL	other party liability; outer plexiform layer; ovine placental lactogen.
OPLL	ossification of posterior longitudinal ligament.
OPM	occult primary malignancy; Office of Personnel Management; ophthalmoplegic migraine.
OPN	ophthalmic nurse; osteopontin.
OPO	Organ Procurement Organization.
opp	opposite.
OPP	opposite.
OPP	osmotic pressure of plasma; oxygen partial pressure.
OPPA	vincristine, procarbazine, prednisone, Adriamycin.
OPPG	oculopneumoplethysmography.
OPRD	opiate receptor delta.
OPRK	opiate receptor kappa.
OPRR	Office of Protection from Research Risks.
OPRT	orotate.. pbosphoribosyltransferase.
OPRTase	orotate phosphoribosyltransferase.
OPS	operations; optical position sensor; osteoporosis-pseudolipoma syndrome; outpatient service; outpatient surgery.
OPSA	ovarian papillary serous adenocarcinoma.
OpScan	optical scanning.
OPSI	overwhelming postsplenectomy infection.
OPSR	Office of Professional Standards Review.
opt	best (Lat. Optimus); optics, optician.
OPT	outpatient treatment.
OPT	outpatient; outpatient treatment.
OPTHD	optimal hemodialysis.
OPV	oral polio vaccine.
OPV	oral poliovirus vaccine.
OPWL	opiate withdrawal.
OR&F	open reduction and fixation; open reading frame.
OR	(o)estrogen receptor; odds ratio; oil retention (enema]; open reduction; operating room; optic radiation; oral rehydration; orosomucoid; orthopedic; orthopedic research.
OR	open reduction.
OR	operating room.
Or	orbitale.
OR	oriented.
O-R	oxidation-reduction.
OR	rate of outflow.
ORA	opiate receptor agonist.
ORA	Orthopaedic Rehabilitation Association (AAOS Specialty Societies).
ORALABX	oral antibiotics.
ORANS	Oak Ridge Analytical System.
ORBC	ox red blood cell.
ORBD-NRC	Osteoporosis and Related Bone Diseases - National Resource Center.
ORC	oculo-reno-cerebellar [syndrome].
Orcb	orchitis.
ORD	optical rotatory dispersion; oral radiation death.
ORDS	Office of Research, Demonstration, and Statistics.
ORE	oil retention enema.
OREF	Orthopaedic Research and Education Foundation.
ORF	open reading frame.
ORF	open reading frames.
Org	org, organic.
ORIF	open reduction with internal fixation (sample operative report).
OrJ	orange juice.
ORJF	open reduction jaw fracture.
ORL	otorhinolaryngology.
ORM	orosomucoid; other regulated material; oxygen ratio monitor.
ORMC	oxygen ratio monitor controller.
ORN	operating room nurse; orthopedic nurse.
Orn	ornithine.
ORNL	Oak Ridge National Laboratoiy.
ORO	oil red 0.
OROS	oral osmotic.
ORP	operating room personnel.
ORP	oxidation-reduction potential.
ORPM	orthorhythniic pacemaker.
ORS	olfactory reference syndrome.
ORS	oral rehydration solution.
ORS	oral surgery, oral surgeon.
ORS	Orthopaedic Research Society (also: AAOS Specialty Societies).
ORS	orthopedic surgeon, orthopedic surgery.
ORS	oxygen radical scavengers.
ORSA	osteoclast resorption stimulating activity.
ORS-ROC	Orthopedic Research Society, Republic of China.
ORT	object relations technique; operating room technician; oral rehydration therapy.
ORT	operating room technician.
orth	ortho orthopedics, orthopedic.
Ortho	ORTH, orthopedics.
ORV	Orthopaedic Research of Virginia.
ORW	Osler-Rendu-Weber (syndrome).
OS	(oculus sinister) left eye.
OS	bone.
Os	occipitosacral.
Os	occupational safety.
Os	office surgery.
Os	Omenn syndrome.
Os	opening snap.
Os	operating system.
Os	oral surgery.
OS	oral surgery.
Os	organ specific.
OS	oris, mouth or other opening.
Os	orthopedic surgeon, orthopedic surgery.
Os	Osgood-Schlatter [disease].
Os	osmium.
OS	osteogenic sarcoma (context bone tumors).
Os	osteogenic sarcoma.
Os	osteosarcoma.
Os	osteosclerosis.
Os	oubain sensitivity.
Os	overall survival.
OS	overall survival.
Os	oxygen saturation.
OS	ozone safe.
OSA	obstructive sleep apnea.
OSA	Office of Services to the Aging.
OSA	Optical Society of America.
OSA	ovarian sectional area.
OSAE	Orthopaedic Special Assessment Examination (for AAOS members: Medical Education Section).
OSAS	obstructive sleep apnea syndrome.
osc	oscillation.
OSCAR	on-line survey, certification and reporting system.
OSCC	oral squamous cell carcinoma.
OSCE	objective structured clinical examination.
OSF	organ system failure; osteoclast-stimulating factor; outer spiral fiber; overgrowth stimulating factor.
OSH	Act Occupational Safety and Health Act of 1970.
OSHA	Occupational Safety and Health Adminstration.
OSI	open systems interconnection [reference model].
osm	osmole; osmosis, osmotic.
OSM	ovine submaxillary mucin; oxygen saturation meter.
Osm/kg	osmoles per kilogram.
Osm/l	osmoles per liter.
OSMED	otospondylometaphyseal dysplasia.
osmol	osmole.
OSR	oilseed rape.
OSRD	Office of Scientific Research and Development.
oss	osseous.
OSS	over-the-shoulder strap.
OST	object sorting test; Office of Science and Technology.
osteo	osteoarthritis; osteomyelitis; osteopathy.
OSTOP	Osteoporosis Society of British Columbia.
OSUK	Ophthalmological Society of the United Kingdom.
OSV	Orbis Sigma Valves Type I.
OT	objective test; oblique talus; occlusion time; occupational therapist, occupational therapy; ocular tension; office therapy; old term (in anatomy).
OT	objective test; occupational therapy.
OT	occupational therapy, old tuberculin.
OT	old tuberculin (Koch's old tuberculin) or Koch's original tuberculin.
OT	olfactory threshold; optic tract; orientation test ; original tuberculin; ornithine transcarbamylase; orotracheal; orthopedic treatment; otolaryngology; otology; oxytocin; oxytryptamine.
Ot	otolaryngology.
OTA	occupational therapy assistant.
OTA	Office of Technology Assessment.
OTA	ornithine transaminase.
OTA	Orthopaedic Trauma Association (Newsletter) (also: AAOS Specialty Societies).
OTA	orthotoluidine arsenite.
OTC	over the counter (a drug that can be obtained without a prescription).
OTM	os tibiale mediale.
Oto	otology.
OTRPC	osm TRPC.
OU	(oculus uterqie) each eye.
OV	office visit.
OWL	Orthopaedic Web Links.
OXT	oxytocin.
oz	ounce.
P (770 abbreviations)
2PD	two point discrimination.
6-PGD	6-phosphogluconate dehydrogenase.
P&A	percussion and auscultation
P&S	permanent and stationary
P(a-ET)CO2	arterial-end tidal PCO2 difference (should be less than 7 mmHg).
p(with line over it)	after, post.
p	pathological.
P	periarteriolar lymphocyte sheath (about spleen).
P	phosphorus, pressure, pulse, para.
P	product.
P	proline.
p.r.n.	pro re nata (as needed).
P:	plan.
P02	pressure of oxygen
p24	viral protein specific to HIV virus.
p53	a tumor suppressor gene.
PA(S)P	pulmonary artery (systolic) pressure.
PA	pernicious anemia.
PA	phagocytic activity.
PA	physician assistant.
PA	polyactive.
PA	posteroanterior (view in X-rays).
PA	pulmonary artery.
PAB	PBS/bovine serum albumin/azide buffer.
PAC	porous apatite ceramics.
PAC	premature atrial contraction.
PACAP	Pituitary adenylate-cyclase-activating polypeptide.
PaCO2 (kPa)	carbon dioxyde partial pressure in arterial blood.
PaCO2	partial pressure of carbon dioxide in arterial blood.
PACU	post anesthesia care unit.
PAD	palmar adductors.
PAD	peripheral arterial disease.
PAD	peripheral arteriosclerotic disease.
PAD	preliminary anatomic diagnosis.
PADP	pulmonary artery diastolic pressure.
PAEDP	pulmonary artery end-diastolic pressure (normal range 4-13 mmHg).
PAF	platelet-activating factor.
PAH	polycyclic aromatic hydrocarbon.
PAHO	Pan American Health Organization.
PAI	physical activity index.
PAL	posterior axillary line.
PALS	pediatric advanced life support (training course).
PALS	periarteriolar lymphocyte sheath.
PAM	Potential Acuity Meter.
PAN	polyarteritis nodosa.
p-ANCA	perinuclear antineutrophil cytoplasmic antibodies.
PAO	periarticular ossification.
PaO2	partial pressure of oxygen in arterial blood.
PAOD	peripheral arterial occlusive disease.
PAOP	pulmonary artery occluded pressure.
PAOP	pulmonary artery occlusive pressure (a.k.a.PCWP).
Pap	Papanicolaou smear.
PAP	peroxidase antiperoxidase.
PAP	prostatic acid phosphatase.
PAP	pulmonary artery pressure (normal mean 9-19 mmHg) .
para	number of pregnancies.
pares.	paresthesias.
PARP	poly (ADP-ribose) polymerase.
PARQ	Parent-Adolescent Relationship Questionnaire.
PARQ	Parental Acceptance/Rejection Questionnaire.
PARQ	Physical Activity Readiness Questionnaire.
PARQ	physical activity recall questionnaire.
PAS	primosome assembly site.
PASG	pneumatic anti-shock garment.
PASI	psoriasis area and severity index (scoring of erythema, induration, scaling and involved area).
PAT	paroxysmal atrial tachycardia.
Path	pathology.
PB	phenobarbital.
PBB	polybrominated biphenyls (intoxication cause disorders of immune function).
PBC	primary biliary cirrhosis.
PBD	Pick body dementia.
PBI	protein bound iodine.
PBL	primary brain lymphoma.
PBL	problem-based learning.
PBMC	peripheral blood mononuclear cells.
PBN	phenyl-N-tert-butyl nitrone.
pBNP	porcine brain natriuretic peptide.
PBO	placebo.
PBOSRF	Palm Beach Orthopaedic and Spinal Research Foundation.
PBPC	peripheral blood progenitor cells.
PBPs	Penicillin-binding Proteins.
PBS	phosphate buffered saline.
PBS	postprandial bood sugar.
PBSC	peripheral blood stem cell.
PBT	persistent, bioaccumulative and toxic.
pc	after meals.
PC	personal computer.
PC	pheochromocytoma.
PC	phone call.
PC	plasma cells.
pc	post cenam, after meals.
PC	posterior cervical.
PC	present complaint.
PCA	patient controlled analgesia.
PCB	polychlorinated biphenyls, toxic used in manufacture of electrical transformers.
PCB	production cell bank.
PCBA	printed circuit board assembled.
PCC	primary cell culture.
PCCE	pseudostratified ciliated columnar epithelium.
PCD	percutaneous catheter drainage.
PCD	programmed cell death.
PCF	posterior cervical fusion.
PCG	pancreatico-cholangiography.
PCG	paracervical ganglion.
PCG	phonocardiogram.
PCG	preventive care group.
PCG	primate chorionic gonadotropin.
PCG	pubococcygeus.
PCH	paroxysmal cold hemoglobinuria.
PCI	parturition to conception interval.
PCI	percutaneous coronary intervention.
PCIOL	posterior chamber intraocular lens.
PCKD	all parameters rechecked.
PCKD	polycystic kidney disease.
PCL	posterior cruciate ligament.
PCL	primary cerebral lymphoma.
PCL	primary cutaneous lymphoma.
PCLI	bone marrow plasma cell labeling index.
PCN	penicillin.
PCNA	proliferating cell nuclear antigen.
PCNSL	primary central nervous system lymphoma.
PCO	polycystic ovaries.
PCO2	partial pressure of carbon dioxide.
PCOD	polycystic ovarian disease.
PCP	phencyclidine.
PCP	Pneumocystis carinii pneumonia.
PCP	primary care physician.
PCR	polymerase chain reaction.
PCT	procalcitonin.
PCT	proximal convoluted tubule.
PCU	Policy Coordination Unit.
PCV	packed cell volume (hematocrit).
PCWP	pulmonary capillary wedge pressure; normal range: 5 to 12 mmHg.
PD	Paget disease.
PD	partial denture.
PD	per diem.
PD	perinatal death.
PD	peritoneal dialysis.
PD	presenile dementia (Alzheimer).
PD	progressive disease.
PD	pulmonary disease.
PD50	protective dose 50 %.
PDA	patent ductus arteriosus.
PDA	posterior descending artery.
PDAg	Pennsylvania Department of Agriculture.
PDAT	pre-senile dementia of Alzheimer type.
PDD	pervasive developmental delay.
PDE	phosphodiesterase.
PDGF	platelet derived growth factor.
PDH	pigment-dispersing hormone.
PDL	periodontal ligament.
PDLLA	poly D,L-lactic acid.
PDLL-D	diffuse poorly-differentiated lymphocytic lymphomas.
PDLL-N	nodular poorly-differentiated lymphocytic lymphomas.
PDMM	poorly differentiated malignant mesothelioma.
PDMS	polydimethylsiloxane.
PDOH	Pennsylvania Department of Health.
PDPC	poorly differentiated papillary carcinomas of papillary thyroid carcinomas.
PDQ	Parkinson's disease questionnaire.
PDQ	Physician's Data Query (CancerNet).
PDR	Physician's Desk Reference.
PDS	polydioxanone.
PDS	poly-p-dioxanone or polydioxanone suture (commercial synthetic absorbable suture).
PDS	Progressive Deterioration Scale.
PDT	photodynamic therapy.
PDTC	pyrrolidine dithiocarbamate.
PE tube	pressure equalization tubes.
PE	Edinburgh Pharmacopoeia.
PE	Norway's electrical inspection agency.
PE	pancreatic extract.
PE	paper electrophoresis.
PE	partial epilepsy.
PE	pelvic examination.
PE	penile erection.
PE	pericardial effusion.
PE	peritoneal exudate.
PE	personal edition.
PE	pharyngoesophageal.
PE	phase encoded.
PE	phenylephrine.
PE	phenylethylamine.
PE	phenytoin equivalent.
PE	phosphatidylethanolamine.
PE	photographic effect.
PE	phycoerythrin (fluorescent dye used in flow cytometry).
PE	physical education.
PE	physical engineering.
PE	physical examination.
PE	physical exercise.
PE	physician extender.
PE	physiological ecology.
PE	pigmented epithelium.
PE	pilocarpine epinephrine.
PE	placental extract.
PE	plant engineering.
PE	plasma exchange.
PE	plating efficiencies.
PE	platinum etoposide.
PE	pleural effusion.
PE	point of entry.
PE	polyethylene.
PE	post-exponential (growth).
PE	potential energy.
PE	powdered extract.
PE	preeclampsia.
PE	preexcitation.
PE	present evaluation.
PE	pressure equalization.
Pe	pressure on expiration.
PE	presumptive eligibility.
PE	prior to exposure.
PE	probable error.
PE	professional engineer.
PE	program evaluation.
PE	proportional error.
PE	pseudoexfoliation.
PE	Pseudomonas exotoxin.
PE	pulmonary edema.
PE	pulmonary embolus/embolism.
PE	pyrogenic exotoxin.
PEA	pelvic examination under anesthesia.
PEA	phenylethyl alcohol.
PEA	phenylethylamine.
PEA	polysaccharide egg antigen.
PEA	pulseless electrical activity (cardiac)
PEAC	Pharmaceutical Education Advisory Committee.
PEAP	positive end airway pressure.
PEAR	phase encoded artifact reduction.
PEARL	Personnel Expertise and Resource Listing.
PEARL	pupils equal and reactive to light.
PEB	cisplatin, etoposide and bleomycin.
PEC	peritoneal exudate cells.
PEC	Petri Enteropathogen Count (plate).
PECAM-1	platelet endothelial cell adhesion molecule (CD-31).
Peds	Pediatrics.
PEEK	polyetheretherketone.
PEEP	positive end-expiratory pressure.
PEFR	peak expiratory flow rate.
PEG	percutaneous endoscopic gastrostomy.
PEG	pneumoencephalogram.
PEG-PE	poly(ethylene glycol)-modified phosphatidylethanolamine.
PEL	permissible exposure limit.
PEL	primary effusion lymphoma.
PEM	protein-energy malnutrition.
PEN	parenteral nutrition.
PEP A	peptidase A isozyme.
PEP B	peptidase B isozyme.
PEP C	peptidase C isozyme.
PEP D	peptidase D isozyme.
pep M24	pepsin extract of type-24 M protein.
PEP S	peptidase S isozyme.
PEP	phosphoenol-pyruvate.
PEP	postexposure prophylaxis.
PEP	primer-extension preamplification.
PEP/ET	preejection to ejection time.
PEPEC	pig enteropathogenic E.coli.
PEPP	Payment Error Prevention Program.
PER OS	by mouth
per	by.
per/os	by mouth.
PerCP	peridinin chlorophyll A protein (fluorescent dye used in flow cytometry).
Peri	around or about (e.g. perirenal = around the kidney).
Peri	perineal.
PERLA	pupils equal, reactive to light & accommodation.
PERRL	pupils equally round and reactive to light.
PERRLA	pupils equally round and reactive to light and accommodation.
PES	prenatal environmental stress.
PET	positron emission tomography.
PET	psychosocially enhanced treatment program.
PETE	polytetrafluoroethylene.
PF	Purkinje fibers.
PF4	platelet factor 4.
PFCx	prefrontal cortex.
PFFD	proximal femoral focal deficiency (virtual support group).
PFJ	patellofemoral joint.
PFO	patent foramen ovale.
PFOLA	Prescription Foot Orthotic Laboratory Association.
PFPS	patellofemoral pain syndrom.
PFS	progression free survival.
PFT	pulmonary function tests.
PG	phosphate yeast glucose (a broth used in microbiology).
pg	picogram - 0.000000000001 gram.
PG	proteoglycan.
PG	pseudogout (chondrocalcinosis).
PGA	polyglycolic acid.
PGC	pregastricin; primordial germ cell.
PGD,6-	6-phosphogluconate dehydrogenase.
PGD2	endoperoxide-D-isomerase.
PGE	prostaglandin E.
PGE1	Prostaglandin E1.
PGE2	endoperoxide-E-isomerase.
PGF	paternal grandfather.
PGF2	endoperoxide-F-isomerase.
PGH	pituitary growth hormone.
PGI2	prostacyclin.
PGL	persistent generalized lymphadenopathy.
PGP	progressive general paralysis.
PGR	progesterone receptor.
pH	hydrogen-ion concentration - acid / alkaline
PH	past history.
PH	plasmactytic hyperplasia.
Ph1	Philadelphia chromosome.
PHA	phytohemagglutinin.
PhD	Doctor in Philosophy.
Phe	phenylalanine.
PHI	peptide histidine isoleucine.
PHM	peptide histidine methionine.
PhN	pharyngeal branch of the vagus nerve.
PHN	(phenyl)hydroxy-naftopidil.
PHN	headphone.
pHn	nutrient pH.
PHN	papillary Hurthle cell neoplasms.
PHN	paraventricular hypothalamic nucleus.
PHN	passive Heymann nephritis.
PHN	pelvic hematoma necessitans.
PHN	perihypoglossal nucleus.
PHN	periventricularis hypothalami.
pHn	pH values measured by NMR.
PHN	phenacetin.
PHN	phenanthrene.
Phn	phenazinium.
PHN	phentolamine.
PHN	phenylephrine.
PHN	phenylisothiocyanate.
PhN	phenylnitrene.
pHn	photoreceptors.
PhN	phrenic nerve.
PHN	p-hydroxynefazodone.
PHN	p-hydroxynorephedrine.
PHn	pleckstrin homology.
PHN	poly-3-hydroxynonanoate.
PHN	portal hypertension.
PHN	post-herpetic neuralgia.
PHN	preferred Health Network.
PHN	Public Health Nursing.
PHN	Public Health Nutrition.
PHN	pulmonary hypertension.
PHNs	public health nurses.
Photo DSC	photo differential scanning calorimeter.
PHPT	primary hyperparathyroidism.
PHPV	poly(-3-hydroxy-5-phenylvalerate.
PHS	phenytoin hypersensitivity syndrome
PHSC	pluripotential hematopoietic stem cell.
PHTLS	prehospital trauma life support.
PHX	past history.
phy	phytane isoprenoid.
PHYSO	physostigmine.
PI	permanently implantable.
PI	personal injury.
PI	positive indices.
PI	present illness.
PI	protease inhibitor.
PI	pulsatility index.
PIA	performance incentive award.
PIA	posterior interosseous artery.
PIBIDS syndrome	photosensitivity, ichthyosis, brittle hair, impaired intelligence, decreased fertility, and short stature.
PIC	peripherally inserted catheter.
PIC	products of incomplete combustion.
PICA	postero-inferior cerebellar artery.
PICC	peripherally inserted central catheter.
PID	pelvic inflammatory disease (CDC documentation).
PiD	Pick's disease.
PID	prolapsed intervertebral disc.
PIE	Practical Incidence Estimators.
PIE	Problem-Intervention-Evaluation (system).
PIE	pulmonary infiltration with eosinophilia.
PIG-A	phosphatidylinositol glycan-class A (gene).
PIG-A	phosphatydilinositolglycan A.
PIH	pregnancy-induced hypertension.
PIH	pyridoxal isonicotinoyl hydrazone.
PIL	peripheral intravenous line.
PIM	pre-installation maintenance.
PIN	posterior interosseous nerve.
PIP	proximal interpalangeal.
PIP	proximal interphalangeal joint.
PIP2	phosphatidylinositol-4,5-biphosphate.
PIPC	piperacillin.
PIPJ	proximal interpalangeal joint.
PIV	peripheral intravenous (line).
PK	pain killer.
PKU	phenylketonuria.
PL	posterolateral.
PLA	phospholipases.
PLA	polylactic acid.
PLAP	placental alkaline phosphatase.
PLF	posterior lumbar fusion.
PLGA	polylactic/glycolic acid.
PLIF	posterolateral interbody fusion.
PLL	prolymphocytic leukemia.
PLNs	peripheral lymph nodes.
PLO-SL	polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy (Nasu-Hakola syndrome).
PLR	pupillary light reflex.
plt	paucity of lymph node T cell mutation.
PLT	platelet.
PLT	post-liver transplantation.
PLT	primary lymphoplasmacytic lymphoma.
PLT	primed lymphocyte tests.
PLT	psittacosis-lymphogranuloma-trachoma group viruses.
PM&R	Physical Medicine and Rehabilitation.
PM	petit mal.
PM	polymyositis.
PM	post meridian (afternoon).
PM	postmitotic cells.
PM	postmortem.
PM	post-nasal.
PMA	Pharmaceutical Manufacturers Association.
PMA	positive mental attitude; progressive muscular atrophy
PMB	postmenopausal bleeding.
PMBL	primary mediastinal B-cell lymphoma.
PMD	private medical doctor
PMDD	premenstrual dysphoric disorder.
PMH	past medical history.
PMI	maxillary primary incisors.
pMI	mitotic index of proliferating cell population.
PMI	pacemaker implantation.
PMI	pain management index.
PMI	Pain Management Inventory.
PMI	painless myocardial infarction.
PMI	panoramic mandibular index.
PMI	past medical illness.
PMI	paternal meiosis I.
PMI	perioperative myocardial infarction.
PMI	phosphomannose isomerase.
PMI	placental membrane inflammation.
PMI	plasma membrane integrity.
PMI	point of maximum impact
PMI	pollen mitosis one.
PMI	posterior myocardial infarctions.
PMI	postmortem interval.
PMI	power motion imaging.
PMI	Pressure Management Indicator.
PMI	Prevention Marketing Initiative.
pMI	previous myocardial infarction.
PMI	prolonged mechanical inspiration.
PMI	prostate malignancy index.
PMI	psoas minor muscle.
PMII	paternal meiosis II.
PMK	primary monkey kidney.
PML	promyelocytic leukemia and its gene on chromosome 15 (previously named myl).
PML	promyelocytic leukemia protein.
PMMA	polymethylmethacrylate.
PMN	polymorphonuclear leukocytes.
PMP	previous menstrual period.
PMP22	Peripheral myelin protein 22.
PMR	protonic magnetic resonance (analysis).
PMR	psychomotor retardation.
PMS	premenstrual tension syndrome (late luteal phase dysphoric disorder).
PMS	Profile of Mood States.
PN	pain.
PNA	protein equivalent of total nitrogen appearance.
PNC	postnecrotic liver cirrhosis.
PNC	prenatal care.
PND	paroxysmal nocturnal dyspnea.
PND	postnatal day.
PNET	primitive neuroectodermal tumor.
PNF	proprioceptive neuromuscular facilitation.
PNH	paroxysmal nocturnal hemoglobinuria.
PNI	peripheral nerve injury
PNMT	phenylethanolamine-N-methyl-transferase.
PNP	pooled normal plasma.
PNS	peripheral nervous system.
PO sus rel	PO (by mouth) sustained release.
PO	(per os) orally, by mouth.
PO	post-operative.
PO	postovulatory.
PO2	Partial pressure of oxygen
POC	point-of-care.
POC	products of conception.
POD	postoperative day.
POD	postovulatory day.
POEMS (syndrome)	polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin lesions.
POG	Pediatric Oncology Group (USA).
poly	prefix for multiple.
polys	polymorphonuclear cells.
POMe	median preoptic nucleus.
POME	persistent otitis media with effusion.
PONF	Paediatric Oncology Nurses Forum (UK).
POP	plaster of paris.
Pop	popliteus tendon.
POS	Piedmont Orthopaedic Society.
pos	positive.
POSI	Paediatric Orthopaedic Society of India.
POSNA	Pediatric Orthopaedic Society of North America (AAOS Specialty Societies).
poss.	possible.
post	posterior.
post-op	post-operative(ly).
postop	postoperative.
POTS	postural orthostatic tachycardia syndrome.
POX	point of exit
POX	pulse oximetry.
PP&A	palpation, percussion and auscultation
PP	per protocol.
PP	Peyer's patches.
PP	phosphoprotein phosphatase.
PP	positive pressure.
pp	postpartum.
pp	postprandial.
PP	presenting problem.
PP	private physician.
PPA	primary progressive aphasia.
PPARalpha	peroxisome proliferator activated receptor-alpha.
PPD	packs per day.
PPD	permanent partial disability.
PPD	purified protein derivative (of tuberculin).
PPE	personal protective equipment.
PPG	peristomal pyoderma gangrenosum.
PPG	portosystemic pressure gradient.
PPH	past pertinent history.
PPH	post-partum hemorrhage
PPH	primary pulmonary hypertension.
PPHN	persistent pulmonary hypertension of the newborn.
PPLO	pleuropneumonia-like organisms.
ppm	parts per million.
PPMC	physician practice management companies.
PPMS	primary progressive multiple sclerosis.
PPND	pallido-ponto-nigral degeneration.
PPP	pregnancy-prevention program.
PPPE	persistent pigmented purpuric eruption.
PPS	pachyman polysaccharides.
PPS	pelvic pain syndrome.
PPS	pentosan polysulfate.
PPS	peripheral pulmonic stenosis.
PPs	peroxisome proliferators.
PPS	Personal Preference Scale.
PPs	Peyer's patches.
pps	phosphoenolpyruvate synthase gene.
PPs	phosphoprotein phosphatases.
PPS	physician, patient and society.
PPS	plasminogen-plasmin system.
PPS	polyvalent pneumococcal polysaccharide.
PPS	poor progesterone surge (cycles).
PPS	popliteal pterygium syndrome.
PPS	postpartum psychiatric syndromes.
PPS	postpartum sterilization.
PPS	postperfusion syndrome.
PPS	postpericardiotomy syndrome.
PPS	post-polio syndrome.
PPS	postpump syndrome.
PPS	potentiating paired stimulation.
PPS	prenatal psychological stress.
PPS	preputial separation.
PPS	primary acquired preleukemic syndrome.
PPS	professional practice standards.
PPS	prospective payment system.
PPS	prospective pricing system.
PPS	protein plasma substitute.
PPS	pulse per second.
PPS/PCO	pelvic pain syndrome/polycystic ovaries
PPSH	pseudovaginal perineoscrotal hypopospadias.
P-PST-1	phenol-sulfating form of sulfotransferases.
ppt	part per trillion.
PPT	Physical Performance Test.
PPT	plasma pregnancy test.
PPT	postpartum thyroiditis.
PPT-B	Preprotachykinin B.
PPV	positive predicitive value.
PR	partial response / partial remission.
PR	perirenal (adipose tissue).
PR	progress record.
PR	pulse rate.
PR3	proteinase 3.
PRA	plasma/peripheral renin activity.
PRAMS	Pregnancy Risk Assessment Monitoring System.
PRAS	prereduced anaerobically sterilized (media).
PRBC	packed red blood cells.
PRC	proximal row carpectomy.
PRCA	pure red cell aplasia.
PRE	progressive resistance exercises.
pre-op	pre-operative(ly).
preop	preoperative.
prep	prepare as.
PRI(S)	pain rating intensity score.
Pri	isopropanol.
PRI	PACAP receptor I.
PRI	Pain Rating Index.
PRI	pain rating index.
PRI	patient review instrument.
PRI	Pediatric Risk Index.
PRI	performance rating instrument.
PRI	perinatal respiratory insufficiency.
PRI	Pharyngeal Retention Index.
PRI	phenol red impurity.
PRI	phosphate reabsorption index.
PRI	phosphoribose isomerase.
PRI	phosrestin I.
PRI	photochemical reflectance index.
PRI	placental ribonuclease inhibitor.
PRI	placental RNase inhibitor.
PRI	platelet reactivity index.
PRI	point of respiratory inversion.
PRI	post recurrence induction.
PRI	postpartum resumption interval.
PRI	post-radiosurgical imaging.
PRI	post-remission intensification.
PRI	power ratio index.
PrI	preinoculation.
PRI	premarital residential independence.
PRI	pre-response interval.
PRI	preservation-reperfusion injury.
PRI	pressure relief index.
Pri	primary.
PRI	primates.
PRI	primidone.
PRI	prinedil
pri	pristane isoprenoid.
PRI	Pristinamycin.
PRI	ProFile Ni-Ti rotary instruments.
PRI	progressive renal insufficiency.
PRI	proliferation rate index.
PRI	protease inhibitors.
PRI	protein intake.
PRI	proximal promoter region I.
PRI	Psychopathy Resemblance Index.
pRi	root-inducing plasmids.
PRI-100	Personal Reaction Inventory.
PRIAS	Packard Radioimmunoassay System.
PRICE	protection, relative rest, ice, compression, elevation.
PRICEMM	protection, relative rest, ice, compression, elevation, modalities, medication.
PRICES	physician modalities, rehabilitation, injections, cross training, evaluation, salicylates.
PRICES	protection, rest, ice, compression, elevation, support.
PRIDE	Parents Resource Institute for Drug Education.
PRIH	prolactin release inhibiting hormone.
PRII	proximal promoter region II.
PRIM&R	Public Responsibility in Medicine & Research.
PRIM	primase.
PRIME	plankton reactivity in the marine environment.
PRIME-MD	Primary Care Evaluation of Mental Disorders.
PRIMEX	primary care extender.
Primip	primipara/primiparity.
PRIMOS	prime operating system.
PRINCE	projects in controlled environments (UK).
PRIND	prolonged reversible ischemic neurologic deficit.
PRION	proteinaceous infectious particle.
PRIST	paper radioimmunosorbent test,
Prl	prolactin.
prn	pro re nata - as required, as needed.
Pro time	prothrombin time.
Pro	proline.
PROM	passive range of motion.
PROM	premature rupture of membranes.
ProMACE-CytaBOM	prednisone, methotrexate, doxorubicin, cyclophosphamide, etoposide, cytarabine, bleomycin, vincristine, methotrexate.
prot	protocol.
PRP	penicillase-resistant penicillin.
PRP	pityriasis rubra pilaris.
PrP	prion protein.
PRRE	pupils round, regular and equal.
Prss14	protease, serine, 14, a gene.
PRT	patient refused test.
PRUJ	proximal radioulnar joint.
PRUL	proximal radioulnar ligament.
PS	parasegment.
PS	paraspinous.
PS	pathologic stage.
PS	physical status.
PS	present symptoms.
PSA	prostate-specific antigen.
PSC	primary sclerosing cholangitis.
PSCR	peripheral stem cell rescue.
PSCT	peripheral stem cell transplant.
PSD	passive sampling devices.
PSEF	Plastic Surgery Educational Foundation.
P-selectin (GMP140)	adhesion molecule on endothelial cells and platelets.
PSF	peak scatter factor.
PSF	posterior spinal fusion.
PSF	post-sophomore fellow.
PSG	progressive subcortical gliosis.
PSGN	post streptococcal glomerulonephritis.
psi	pounds per square inch.
PSIS	posterior superior iliac spine.
PSP	phenylsulfonphthalein test.
PSP	posterior spinous process.
PSS	Perceived Stress Scale.
PSSV	pre-study site visit.
PST	palmar skin temperature.
PST	paroxysmal supraventricular tachycardia.
Pst	phosphate-specific transporter.
pST	porcine somatotropin
PST	problem-solving therapy
PST	proximal straight tubule.
PST	proximal straight tubules
PST	pulse separation time
PSTH	poststimulus time histograms.
PSTT	placental site trophoblastic tumor.
PSUR	periodic safety update report.
PSV	peak systolic velocity.
PSVT	paroxysmal supraventricular tachycardia.
PsyD	Doctor in Psychiatry.
PT	patient.
PT	permanent and total.
PT	physical therapy.
PT	pneumothorax.
PT	prothrombin time.
pt.	patient, pint.
PTA Medication	prior to admission medication.
PTA	percutaneous transluminal angioplasty.
PTA	phosphotungstic acid.
PTA	prior to admission/arrival.
PTAH	phosphotungstic acid hematoxylin.
PTC	percutaneous transhepatic cholangiography.
PTCA	percutaneous transluminal coronary angioplasty.
PTD	permanent total disability.
PTFE	polytetrafluoroethylene.
PTGC	progressively transformed germinal centers.
PTH	parathyroid hormone.
PTH	phenylthiohydantoin.
PTHc	C-terminal parathyroid hormone.
PTHC	percutaneous transhepatic cholangiography.
PTHC	posttransfusion hepatitis C.
PTHrP	parathyroid hormone-related peptide.
PTK	protein tyrosine kinases.
PTLD	post-transplant lymphoproliferative disorder.
PTMC	Percutaneous transvenous mitral commissurotomy.
PTMR	percutaneous transmyocardial revascularization.
PTO	portal triad occlusion.
PTP	Professional Team Physicians.
PTR	patellar tendon reflex
PTS	phosphotransferase system.
PTSD	Post-Traumatic Stress Disorder (National Center for PTSD).
PTT	partial thromboplastin time.
PTU	propylthiourcil (antithyroid drug).
PTW	Play-the-Winner.
PTX	pneumothorax.
PU	polyurethane.
PU	pregnancy urine.
PUCP	maximum urethral closure pressure.
PUD	peptic ulcer disease.
PUD	peri-urethral diathermy (associated with superficial bladder cancer).
PUD	pulmonary disease.
PUFA	polyunsaturated fatty acids.
pulv	powder.
Pulv	pulvinar.
PuLv	ventral part of the lateral pulvinar.
Pulv-LP	pulvinar-posterior-lateral complex.
PuM	medial pulvinar.
PUPPP	pruritic urticarial papules and plaques of pregnancy.
PV bleed	per vagina bleed.
PV	paravertebral.
PV	polycythemia vera.
PVA	polyvinyl alcohol fixative.
PVASI	pelvic vascular injury.
PVB	paravertebral block.
PVB	premature ventricular beat.
PVB19	parvovirus B19.
PVC	premature ventricular contraction.
PVC	pulmonary venous congestion.
PVD	peripheral vascular disease.
PVD	pre-senile vascular dementia.
PVNS	pigmented villonodular synovitis.
PvO2	mixed venous oxygen tension.
PVR	post-void residual.
PVR	pulmonary vascular resistance.
PVR	pulse volume recorder.
PVST	paraventriculospinal tract.
PVST	paroxysmal supraventricular tachycardia.
PVT	paroxysmal ventricular tachycardia.
PVT	peripheral vein thrombophlebitis.
PVT	periprostatic vein thrombosis.
PVT	polymorphic ventricular tachycardia.
PVT	popliteal vein transplant.
PVT	portal vein thrombosis.
pvt-1	plasmacytoma variant translocation-1 gene (on chromosome 15).
PWB	partial weight bearing.
PWP	pulmonary wedge pressure.
PWS	Prader-Willi syndrome.
PX	papular xanthoma.
PX	physical examination.
PX	prescription.
PX	prognosis.
PXE	pseudoxanthoma elasticum.
PZI	protamine zinc insulin - a long acting insulin.
Q (35 abbreviations)
q	(Lat. quaque) - each or every.
q.d.	qd, (quaque in die) once a day, every day
q.h.	qh, every hour
q.i.d.	qid, four times a day
q.o.d.	every other day
q.s.	quantity sufficient
Q2H	every two hours.
QA	quality assurance.
QA/QC	quality assurance/quality control.
QALY	quality-adjusted life year.
QAM	qam, every morning.
QAR	quantitative autoradiography.
QC	quality control.
QCA	quantitative coronary angiography.
QCT	quantitative computed tomography.
QD	every day.
QH	every hour.
qhs	every night at bedtime.
QID	four times a day.
QM	qm, every morning.
QMI	Q-wave myocardial infarction.
QMT	quantitative muscle testing.
QN	qn, quaque nox - every night.
QNS	qns, quantity not sufficient.
QOD	every other day.
QOH	every other hour.
QoL	quality of life.
QON	every other night.
QP	as much as desired; at will.
QPM	every afternoon.
qqh	every four hours (Lat. quaque quarta hora).
QS	qs, sufficient quantity.
QT	quantity; quart; quiet.
qt.	quart.
QV	as much as desired.
R (363 abbreviations)
R	rectal.
R	residual tumor after treatment.
R	respiration (also resp).
R	right.
R	roentgen.
R.D.	registered dietician.
R.P.R.	rpr, rapid plasma reagin.
R.R.	recovery room.
R/O	rule out.
R/s	roentgens per second.
R/T	related to.
R2R	Reach to Recovery ACS program.
RA	refractory anemia.
RA	rheumatoid arthritis.
RA	right atrium.
RACS	Royal Australasian College of Surgeons.
rad	radiotherapy.
rad	radiation absorbed dose.
RAEB	refractory anemia with excess blasts.
RAI	radioactive iodine uptake.
RAIU	radioactive iodine uptake.
RAP	right atrial pressure.
RAPD	relative afferent pupillary defect.
RAR-α	retinoic acid receptor-alpha (gene on chromosome 17).
RAS	renin-angiotensin system.
RAST	serum radioallergosorbent test (test for milk sensitivity).
RATx	radiation therapy
RBBB	right bundle branch block.
RBC	red blood cells/count.
RBE	relative biological effects.
RBF	renal blood flow.
RBILD	respiratory bronchiolotis interstitial lyng disease.
RBWC	randomly bred White Carneau pigeons.
RCA	right coronary artery.
RCA1	Ricinus communis agglutinin.
rCBF	regional cerebral blood flow.
RCM	right costal margin.
RCMD	refractory cytopenia with multilineage dysplasia.
RCMI	red blood cell morphologic index.
RCP	Royal College of Physicians.
RCPSC	Royal College of Physicians and Surgeons of Canada.
RCR	respiratory control ratio.
RCSED	Royal College of Surgeons of Edinburgh.
RCSENG	Royal College of Surgeons of England.
RCSI	Royal College of Surgeons in Ireland.
RCT	randomized controlled trial.
RD	respiratory disease.
RDA	recommended dietary allowance.
RDS	respiratory distress syndrome.
RDW	red cell distribution width.
RE	right eye.
re:	regarding.
REAL	Revised European American Classification.
Reg	regular.
Reg.	registrar.
REL	release.
REM	rapid eye movement.
REP	repair.
REPS	repetitions.
RES	reticuloendothelial system.
RESNA	Rehabilitation Engineering and Assistive Technology Society of North American.
Resp	respiration, respiratory.
REV	Reticuloendotheliosis virus.
RF	rheumatic fever, rheumatoid factor.
RFA	radiofrequency ablation.
RFA	ratio of fat area.
RFFIT	rapid fluorescent focus inhibition test.
RFI	renal failure index: UNa/(UCr/PCr).
RFLP	restriction-fragment length polymorphism.
RFS	relapse free survival.
RGD	arginine-glycine-asparagine (aminoacid sequence responsible for cell-binding properties of fibronectin, vitronectin, fibrinogen, laminin, collagen).
RGO	reciprocating gait orthosis.
Rh neg. (Rh-)	Rhesus factor negative.
Rh pos. (Rh+)	Rhesus factor positive.
RH	relative humidity.
RH	Reproductive Health.
Rh	Rhesus (monkey) factor.
rhBMP-2	recombinant human bone morphogenetic protein.
RHD	rheumatic heart disease.
RI	resistive index.
RI	reticulocyte index = (%reticulocyte x pt Hct)/45 x (1/shift correction factor); (shift correction factor = 1.5 for Hct 35%; 2 for Hct 25%; 2.5 for Hct 15%); if RI <2% = hypoproliferative anemia, if RI 2% = excessive destruction or loss.
RIA	radioimmunoassay.
RICE	rest, ice, compression, and elevation.
RIND	reversible ischemic neurologic deficit.
RIS	Risperidone.
RJOS	Ruth Jackson Orthopaedic Society (also: AAOS Specialty Societies).
RK	rabbit kidney.
RL	right lateral.
RLA	Resident Legal Advisor.
RLD	reference lumen diameter.
RLE	rabbit limbal epithelial.
RLE	rabbit liver esterase.
RLE	rat liver epithelial cells.
RLE	rat lung epithelial cells.
RLFP	remaining lifetime fracture probability.
RLL	right lower lobe (lung).
RLQ	right lower quadrant (abdomen).
RM	routine maintenance.
RMA	refuse/s medical assistance.
RML	right middle lobe (lung); right mediolateral.
RMR	resting metabolic rate.
RN	registered nurse.
RNA	ribonucleic acid.
RO	rule out.
ROA	right occiput anterior.
ROC	receiver operating curve analysis.
ROD	removal of drain.
ROI	region of interest.
ROM	range of motion (of joint).
ROMI	Rating of Medication Influences scale (psychiatry).
ROMI	rule-out myocardial infarction.
ROP	retinopathy of prematurity.
ROP	right occiput posterior.
ROS	removal of sutures.
ROS	review of symptoms.
ROS	review of systems.
ROT	right occiput transverse
ROT	rule of thumb.
RP	red pulp.
RP	retrograde pyelogram.
RPD	ERP dispersion.
RPE	retinal pigment epithelium.
RPGN	rapidly progressive glomerulonephritis.
RPI	reticulocyte production index.
RPP	rate pressure product.
RPR	rapid plasma reagin.
RPT	register physical therapy.
RR	relative risk.
RR	respiratory rate.
RR	risk ratio.
RRF	residual renal function.
RRMS	relapsing remitting multiple sclerosis.
RROM	resistive range of motion.
RROSR	RoundupReady* oilseed rape.
RRR	regular rate and rhythm.
RRT	random response technique.
RRT	Registered Respiratory Therapist.
RRT	relative retention time.
RRU	respiratory resistance unit.
RRV-TV	rhesus rotavirus vaccine-tetravalent.
RS	radioscaphoid.
RS	random sample.
RS	rating schedule.
Rs	Rauwolfia serpentina.
RS	Raynaud syndrome.
RS	recipient's serum.
RS	reclassification sensitivity.
RS	rectal sinus.
RS	rectal suppository.
RS	rectosigmoid.
RS	reducing substance.
RS	Reed-Sternberg cells characteristic for Hodgkin's disease.
RS	reinforcing stimulus.
RS	Reiter syndrome.
RS	relative stimulus.
RS	renal specialist.
RS	respiratory syncytial (virus).
RS	response to stimulus.
RS	resting subject.
RS	reticulated siderocyte.
RS	retinoschisis.
RS	Rett syndrome.
RS	review of symptoms.
RS	Reye syndrome.
RS	Richter's syndrome (transformation of CLL in DLCL).
RS	right sacrum.
RS	right septum.
RS	right side.
RS	right stellate (ganglion).
RS	Ringer solution.
RS	Roberts syndrome.
RS	Rous sarcoma.
Rs	systemic resistance.
RS3PE	remitting seronegative symmetrical synovitis with pitting edema.
RSA	rabbit serum albumin.
RSA	regular spiking activity.
RSA	relative specific activity.
RSA	relative standard accuracy.
RSA	reticulum cell sarcoma.
RSA	right sacroanterior (fetal position).
RSA	right subclavian artery.
RSA	roentgenographic stereogrammetric analysis.
Rsa	systemic arterial resistance.
RSB	Rapid Shallow Breathing Index.
RSB	rectal suction biopsy.
RSB	recurrent sinus barotrauma.
RSB	reticulocyte standard buffer.
RSB	retinal Schiff base.
RSB	right sternal border.
RSB	roasted soybeans.
RSC	rat spleen cell.
RSC	rested state contraction.
RSC	reversible sickle-cell.
RSC	right subclavian.
RScA	right scapuloanterior (fetal position).
RSCN	Registered Sick Children's Nurse.
RScP	right scapuloposterior (fetal position).
RSD	reflex sympathetic dystrophy.
RSD	relative standard deviation (Srel).
RSDS	reflex sympathetic dystrophy syndrome.
RSE	rapid spin-echo.
RSEP	right somatosensory evoked potential.
RSES	Rosenberg Self-Esteem Scale.
RSH	Royal Society of Health.
RSI	rapid sequence induction.
RSI	rapid sequence intubation.
RSI	repetition strain injury.
RSIC	Radiation Shielding Information Center.
R-SIRS	Revised Seriousness of Illness Rating Scale.
RSJVP	rapid-sequence intravenous pyelography.
RSL	radioscapholunate ligament.
RSL	right sacrolateral (fetal position).
RSLD	repair of sublethal damage.
RSM	restriction site mutation.
RSM	risk screening model.
RSM	Royal Society of Medicine.
RSMR	relative standard mortality rate.
RSN	restin.
RSN	right substantia nigra.
RSNA	Radiological Society of North America.
RSO	radiation safety officer.
RSO	Resident Surgical Officer.
RSO	right superior oblique (muscle).
rSO2	regional oxygen saturation.
RSP	removable silicone plug.
RSP	ribose-5-phosphatase.
RSP	right sacroposterior (fetal position).
RSPCA	Royal Society for the Prevention of Cruelty to Animals.
RSPH	Royal Society for the Promotion of Health.
RSPK	recurrent spontaneous psychokinesis.
rSr	an electrocardiographic complex.
RSR	regular sinus rhythm.
RSR	relative survival rate.
RSR	right superior rectus (muscle).
RSS	rat stomach strip.
RSS	rectosigmoidoscopy.
RSS	Russell-Silver syndrome.
RSSE	Russian spring-sununer encephalitis.
RSSR	relative slow sinus rate.
RST	radiosensitivity test.
RST	reagin screen test.
RST	right sacrotransverse (fetal position).
RST	rubrospinal tract.
RSTI	Radiological Service Training Institute.
RSTL	relaxed skin tension lines.
RSTMH	Royal Society of Tropical Medicine and Hygiene.
RSTS	retropharyngeal soft tissue space.
RSU	radiological sciences unit.
RSV	respiratory syncytial virus.
RSV	right subclavian vein.
RSV	Rous sarcoma virus.
RSVC	right superior vena cava.
RSVP	retired senior volunteer program.
RT(ARRT)	Radiologic Technologist certified by the American Registry of Radiologic Technologists.
RT(N)(ARRT)	Radiologic Technologist (Nuclear Medicine) certified by the American Registry of Radiologic Technologists.
RT(R)(ARRT)	Registered Technologist, Radiography certified by the American Registry of Radiologic Technologists).
RT(T)(ARRT)	Radiologic Technologist (Radiation Therapy) certified by the American Registry of Radiologic Technologists.
rt	lat right lateral.
RT	radiologic technologist.
RT	radiotelemetry.
RT	radiotherapy.
RT	radium therapy.
RT	rapid tranquilization.
RT	reaction time.
RT	reading test.
RT	reciprocating tachycardia.
RT	recreational therapy.
RT	rectal temperature.
RT	reduction time.
RT	Registered Technician.
RT	renal transplantation.
RT	resistance transfer.
RT	respiratory therapist/therapy.
RT	response time.
RT	rest tremor.
RT	retransformation.
RT	reverse transcriptase.
RT	reverse transcription.
rT	ribothymidine.
RT	right thigh.
Rt	right.
RT	room temperature.
RT	Rubinstein-Taybi (syndrome).
Rt	total resistance.
rt.	right
RT3	rT3 reverse triiodothyronine.
RT3U	resin T3 uptake.
RTA	ray tracing algorithm.
RTA	renal tubular acidosis.
RTA	reverse transcriptase assay.
RTA	road traffic accident.
RTAD	renal tubular acidification defect.
RTC	random control trial.
RTC	rape treatment center.
RTC	renal tubular cell.
RTC	residential treatment center.
rtc	return to clinic.
RTC	return to clinic.
RTC	round the clock.
RT-CT	radiotherapy dedicated computed tomography.
RTD	renal tubular defect.
Rtd	retarded.
RTD	routine test dilution.
RTECS	Registry of Toxic Effects of Chemical Substances.
RTF	resistance transfer factor.
RTF	respiratory tract fluid.
RTG-2	rainbow trout gonadal tissue cells.
rTHF	recombinant tumor necrosis factor.
RTI	respiratory tract infection.
RTI	reverse transcriptase inhibition.
RTK	receptor-tyrosine kinase: rhabdoid tumor of the kidney.
rtl	rectal.
RTM	registered trademark.
rTMS	repetitive transcranial magnetic stimulation.
RTN	renal tubular necrosis.
RTO	return to office.
RTO	right toe off.
RTOG	Radiation Therapy Oncology Group.
RTOG	radiation therapy oncology group.
RTP	radiation treatment planning.
RTP	renal transplantation patient.
RTP	reverse transcriptase-producing (agent).
rt-PA	recombinant tissue plasminogen activator.
rTPA/rtPA	recombinant tissue plasminogen activator.
RTPCR	reverse transcriptase polymerase chain reaction.
RT-PCR	reverse transcriptase polymerase chain reaction.
RTR	Recreational Therapist, Registered.
RTR	red blood cell turnover rate.
RTR	retention time ratio.
RTs	reaction times.
RTS	real time scan.
RTs	relaxation times.
RTs	residence times.
RTs	respiratory therapists.
RTS	respiratory tract secretions.
RTS	Rett syndrome.
RTs	reverse transcriptases.
RTS	revised trauma score.
RTS	revised trauma scores.
RTS	right toestrike.
RTS	Rothmund-Thomson syndrome.
RTS	Rubinstein-Taybi syndrome.
RU 486	antiprogesterone used for abortion in early gestation.
RU	resin uptake.
RU	routine urinalysis.
RUL	right upper lobe (lung).
RUQ	right upper quadrant (abdomen).
RUT	rapid urease test.
RV	residual volume of lung.
RV	right ventricle.
RVAS	right ventricular assist system.
RVDC	right ventricle diastolic collapse.
RVF	right ventricular failure.
RVH	right ventricular hypertrophy.
RVLM	rostral ventrolateral medulla.
RVMI	right ventricle myocardial infarction.
RVP	reduced vascular response; resting venous pressure; right ventricular pressure.
RVQ	relaxed vaginal outlet.
RVR	respiratory rate:tidal volume ratio.
RVT	renal vein thrombosis.
Rx	prescription.
Rx	treatment, therapy.
RXR	retinoid receptors.
S (506 abbreviations)
S & sx	signs and symptoms
S&S	signs and symptoms.
s(with line over it)	without.
S	serine.
s	sine, without.
S	specialist (physician).
S/L	sublingual.
S/M	sudomasochism.
S/P	status post
S/S	signs and symptoms (also SAS).
S3	(cardiac) third sound.
SA	sinoatrial node.
SA	surface area (see BSA).
SAE	serious adverse event.
SAFHS	sonic accelerated fracture healing system.
SAH	subarachnoid hemorrhage.
SAL	saline.
SAM	sulfur-adenosylmethionine.
SaO2	systemic arterial oxygen saturation (%).
SAR	specific absorption rate (MRI).
SAR	suspected adverse reaction.
SARSS	suspected adverse reaction surveillance scheme.
SAS	signs and symptoms (also S/S).
SAS	statistical analysis system.
SASOC	the Social Acceptability Scale of Occlusal Conditions.
SAT	South African territories.
SATO	Sociedad Andaluza de Traumatologia y Ortopedia (Andalusian Society of Traumatology & Orthopaedics).
Sau3A	restriction enzyme from Staphylococcus aureus 3A.
SB	sudan black.
SBB	sudan black B.
SBCP	Sociedade Brasileira de Cirurgia Plastica (Brazilian Society of Plastic Surgery).
SBE	shortness of breath on exertion.
SBE	subacute bacterial endocarditis.
SBFT	small bowel follow through series.
SBM	soybean meal.
SBO	side branch occlusion (in coronary artery stenting).
SBO	skull base osteomyelitis.
SBO	small bowel obstruction.
SBO	soyabean oil.
SBOT	Sociedade Brasileira de Ortopedia e Traumatologia (Brazilian Association of Orthopaedics and Traumatology).
SBP	systemic/ systolic blood pressure.
SC	s.c., subcutaneous.
SC	scaphocapitate.
SC	stratum corneum.
SC	subcutaneous.
SCAI	The Society for Cardiac Angiography and Interventions.
SCAN	suspected child abuse or neglect.
SCC	squamous cell carcinoma.
SCC	standard clinical criteria.
SCCOT	Colombian Society for Orthopaedics and Traumatology.
SCD	sequential compression device.
SCD	sickle cell disease.
SCD	spinocerebellar degenerations.
SCD	sudden cardiac death.
SCDs	scalp current densities.
SCDS	Seychelles Child Development Study.
SCDS	Sheffield child development study.
SCDs	sickle cell diseases.
SCDs	steroid contraceptive drugs.
SCDS	sudden cardiac death syndrome.
SCE	sister-chromatid exchange.
SCF	stem cell factor.
SCFE	slipped capital femoral epiphysis (case report).
SCHIP	State Children's Health Insurance Program.
SCI	spinal cord injury.
SCICU	spinal cord intensive care unit.
SCID	severe combined immunodeficiency disease.
SCIWORA	spinal cord injury without radiologic abnormality (Wheeless Textbook: Fractures).
SCJ	squamocolumnar junction.
SCLC	Small cell lung cancer
SCOI	Southern California Orthopaedic Institute.
SCS	spinal chord stimulation.
SCS	Spinal Cord Society.
SCTN	Scottish Cancer Therapy Network
SD	shoulder disarticulation.
SD	signal detection.
SD	stable disease.
SD	standard deviation.
SDAT	senile dementia of Alzheimer's type.
SDH	sorbitol deshydrogenase.
S-DSA	stepping digital subtraction angiography.
SDU	source delivery unit.
SDU	standard deviation units.
SDV	Source Data Verification
SE	spin echo (MRI).
SE	staphylococcal enterotoxins.
SEB	staphylococcal enterotoxin B.
sec	second.
SEC	spontaneous echo contrast.
SECOT	Sociedad Espanola de Chirurgia Ortopedica y Traumatologia (only Spanish).
sed rate	sedimentation rate.
segs	polymorphonuclear neutrophil
SEHCS	silicones environmental health and safety concil.
SEM	scanning electron microscopy.
SEM	standard error of the mean.
Ser	serine.
SES	sick euthyroid syndrome.
SES	socioeconomic status.
SETTLE	spindle epithelial tumor with thymus-like differentiation.
SF	swine fever.
SFA	French Society of Arthroscopy score.
SFA	saturated fatty acids.
SFA	screen-film angiography.
SFA	spike frequency adaptation.
SFA	spindle frequency activity.
SFA	standing foot angle.
SFA	superficial femoral artery.
SFOP	French Paediatric Oncology Society.
SG	specific gravity.
SGA	small-for-gestational age.
SGC	salivary gland carcinoma.
SGDM	Study Group on Data Management.
sGMM	synthetic glucose monomycolate.
SGO	Society of Gynecologic Oncologists.
SGOT	serum glutamic-oxalacetic transaminase (see AST).
SG-P	silica glass powder.
SGPT	Serum glutamic-pyruvic transaminase (see ALT).
SH	social history, serum hepatitis.
SH	Society for Hematopathology.
SHAFT	Sad, Hostile, Anxious, Frustrating, Tenacious Syndrome.
SHBG	sex hormone binding globulin.
SHG	sonohysterography.
SHO	Senior House Officer.
SHR	spontaneously hypertensive rats.
SI	International System of Units.
SI	serum iron.
SI	shock index.
SI	Steel (mouse).
SI	syncytium-inducing viral phenotype.
SIADH	syndrome of inappropriate antidiuretic hormone secretion.
SICOT	International Society of Orthopaedic Surgery and Traumatology (AAOS Specialty Societies: SICOT US Chapter).
SICU	surgical intensive care unit.
SIDS	Sudden Infant Death Syndrome (SIDS Network).
sig	instructions or directions.
SIg	surface immunoglobulins.
SIL	squamous intraepithelial lesions.
SIM	Society of the Internet in Medicine.
SIMA	small intestinal mucinous antigen.
SIOP	International Society of Paediatric Oncology.
SIOT	Societa Italiana di Ortopedia e Traumatologia (Italian Society of Orthopaedics and Traumatology).
SIR	standardized incidence ratio.
SIROT	Societee Internationale de Recherche Orthopeique et Traumatologie.
SIRP	signal-regulatory proteins.
SIRS	systemic inflammatory response syndrome.
SIS	small intestinal submucosa (hernia repair).
SITOP	Societa Italiana di Ortopedia e Traumatologia Pediatrica (Italian Society of Paediatric Orthopaedics and Traumatology).
S-K	Sauve Kapandji (procedure).
SK	streptokinase.
sk	trx skeletal traction.
SKSD	SK-SD streptokinase-streptodomase.
sl	in a broad sense (Lat.sensu lato).
SL	sarcolemma.
SL	scapholunate.
SL	sclerosing leukoencephalopathy.
SL	secondary leukemia.
SL	segment length.
SL	sensation level.
SL	sensory latency.
SL	septal leaflet.
SL	short-leg (brace).
SL	Sibley-Lehninger (unit).
SL	signal level.
SL	Sinding Larsen (syndrome).
SL	Sjogren-Larsson (syndrome).
SL	slit lamp.
SL	small lymphocyte.
SL	sodium lactate.
SL	solidified liquid.
SL	sound level.
SL	Stein-Leventhal (syndrome).
sl	stemline.
SL	streptolysin.
sl	sublingual.
SL	sublingual.
SL	systolic wave, latent.
SL1	segment length, inferior.
SL5	segment length, septal.
SLA	left sacroanterior (fetal position) (Lat.sacrolaeva anterior).
SLA	segment length, anterior.
SLA	single-cell liquid cytotoxic assay.
SLA	slide latex agglutination.
SLA	soluble liver antigen.
SLA	superficial linear array.
SLA	surfactant-like activity.
SLAC	scapholunate advanced collapse (wrist).
SLAM	scanning laser acoustic microscope.
SLAM	systemic lupus erythematosus activity measure.
SLAP	serum leucine aniinopeptidase.
SLAP	superior labrum anterior posterior (lesion).
SLAT	simultaneous laryngoscopy and abdominal thrusts.
SLB	short-leg brace.
SLC	secondary lymphoid organ chemokine.
SLC	short leg cast.
SLCC	short-leg cylinder cast.
SLD	SLDH serum lactate dehydrogenase.
SLD	sublethal damage.
SLDR	sublethal damage repair.
SLE	slit lamp examination.
SLE	St.Louis encephalitis.
SLE	systemic lupus erythematosus.
SLEA	sheep erythrocyte antibody.
SLEDAI	systemic lupus erythematosus disease activity index.
SLEP	short latent evoked potential.
SLEV	St.Louis encephalitis virus.
SLG	synthetic latex gloves.
SLHR	sex-linked hypophospbatemic rickets.
SLI	selective lymphoid irradiation.
SLI	somatostatin-like immunoreactivity.
SLI	splenic localization index.
SLIC	scanning liquid ionization chamber.
SLIDRC	Student Loan Interest Deduction Restoration Coalition.
SLIL	scapholunate interosseous ligament.
SLIM	synovial-like interface membrane.
SLIP	serial line interface protocol.
SLIR	somatostatjn-like iminunoreactivity.
SLK	superior limbic keratoconjunctivitis.
SLKC	superior limbic keratoconjunctivitis.
SLL	segment length, lateral.
SLL	small lymphocytic lymphoma.
SLM	sound level meter.
SLMC	spontaneous lymphocyte-mediated cytotoxicity.
SLN	sublentiform nucleus.
SLN	superior laryngeal nerve.
SLNWBC	short-leg non-weight bearing cast.
SLNWC	short-leg nonwalking cast.
SLO	Smith-Lemli-Opitz syndrome.
SLO	streptolysin O.
SLOS	Smith-Lenili-Opitz syndrome.
SLP	left sacroposterior (fetal position) (Lat.sacrolaeva posterior).
SLP	segmental limb systolic pressure.
SLP	sex-limited protein.
SLP	short luteal phase.
SLP	subluxation of the patella.
SLPI	secretory leukocyte protease inhibitor.
SLPP	serum lipophosphoprotein.
SLR	Shwartzman local reaction.
SLR	single lens reflex.
SLR	straight leg raising.
SLRT	straight leg raising test.
SLS	segment long-spacing.
SLS	short-leg splint.
SLS	single limb support.
SLS	Sjogren-Larsson syndrome.
SLS	stagnant loop syndrome.
SLS	Stein-Leventhal syndrome.
SLT	left sacrotransverse (fetal position) (Lat.sacrolaeva transversa).
SLT	single lung transplantation.
SLT	smokeless tobacco.
SLT	solid logic technology.
SLUD	salivation, lacrimation, urination, defecation.
SLUDGE	salivation, lacrimation, urination, defecation, gastrointestinal upset, emesis.
SLWC	short-leg walking cast.
sm	an small animal.
SM	Master of Science.
SM	sadomasochism.
Sm	samarium.
SM	self-monitoring.
Sm	Serratia marcescens.
SM	silicon microphysiometer.
SM	simple mastectomy.
SM	skim milk.
sm	smear.
Sm	Smith (antigen).
SM	smooth muscle.
SM	somatomedin (insulin-like growth factors).
SM	space medicine.
SM	sphingomyelin.
SM	splenic macrophage.
SM	sports medicine.
SM	streptomycin.
SM	StrUmpell-Marie (syndrome).
SM	submandibular.
SM	submaxillary.
SM	submucous.
sM	suckling mouse.
SM	suckling mouse.
SM	sucrose medium.
SM	suction method.
SM	superior mesenteric.
SM	surgical microscope.
SM	surrogate mother.
SM	sustained medication.
SM	symptoms.
SM	synaptic membrane.
SM	synovial membrane.
SM	systolic motion.
SM	systolic murmur.
sm.	small.
SMA	sequential multiple analysis or analyzer; sequential multichannel autoanalyzer: simultaneous multichannel autoanalyzer.
SMA	smooth muscle antibody.
SMA	Society for Medical Anthropology.
SMA	somatomedin A.
SM-A	somatomedin A.
SMA	spinal muscular atrophy.
SMA	spontaneous motor activity.
SMA	Sport Medicine Australia.
SMA	standard method agar.
SMA	superior mesenteric artery.
SMA	supplementary motor area.
SMA-6	Sequential Multiple Analysis in-six different serum tests.
SMABF	superior mesenteric artery blood flow.
SMAC	Sequential Multiple Analyzer Computer.
SMAC	soluble membrane attack complex.
SMAC	sorbitol MacConkey agar.
SMAC	superior mesenteric arterial conductance.
SMaC	Surrogate Marker Cost-Efficacy.
SMAE	superior mesenteric artery embolism.
SMAF	smooth muscle activating factor.
SMAF	specific macrophage arming factor.
SMAG	Special Medical Advisory Group.
SM-AHNMD	systemic mastocytosis with associated clonal hematopoietic non-mast cell lineage disorder.
SMAL	serum methyl alcohol level.
SMAO	superior mesenteric artery occlusion.
SMART	simultaneous multiple angle reconstruction technique.
SMAS	submuscular aponeurotic system.
SMAS	superficial musculo-aponeurotic system.
SMAS	superior mesenteric artery syndrome.
SMAST	Short Michigan Alcoholism Screening Test.
SMB	selected mucosal biopsy.
SMB	standard mineral base.
sMb	suckling mouse brain.
SMBFT	small bowel follow-through.
SMBG	self-monitored blood glucose.
SMC	Scientific Manpower Commission.
SM-C	Sm-C somatomedin C.
SMC	smooth muscle cell.
SMC	somatomedin C.
SM-C	somatomedin C.
SMC	succinylmonocholine.
SM-C/IGF	somatomedin C/insulin-like growth factor.
SMCA	smooth muscle contracting agent.
SMCA	suckling mouse cataract agent.
SMCD	senile macular choroidal degeneration.
SMCD	systemic mast cell disease.
SMCD	systemic meningococcal disease.
SMCR	Smith-Magenis chromosome region.
SMD	senile macular degeneration.
SMD	spondylometaphyseal dysplasia.
SMD	submanubrial dullness.
SMDA	Safe Medical Devices Act (of 1990).
SMDA	starch methylenedianiline.
SMDC	sodium-N-methyl dithiocarbamate.
SMDC	standards for medical device communication.
SMDM	Society for Medical Decision Making.
SMDS	secondary myelodysplastic syndrome.
SME	severe myoclonic epilepsy.
SMED	spondylometaphyseal dysplasia.
SMF	secondary myelofibrosis.
S-Mgb	serum myoglobin.
SMO	Sociedad Mexicana de Ortopedia (only Spanish).
SMP	sympathetic maintained pain.
SMR	sexual maturity ratings.
SMR	submucous resection.
SMS	solitary myofibroma(tosis) of the skin.
SMTP	Stachybotrys microspora triprenyl phenol.
SMX	sulfamethoxazole.
SN	séroneutralization.
SNARF-1	carboxy-seminaphthorhodafluor.
SNLG	Scottish and Newcastle Lymphoma Group.
SNP	sodium nitroprusside.
SO	standing order OR significant other.
SO	superior oblique.
SOA	Southern Orthopaedic Association.
SOAP	symptoms, objective, assessment, and plan.
SOB	shortness of breath.
SOBCOT	Societee Belge de Chirurgie Orthop?ique et de Traumatologie (Belgian Society of Orthopaedics and Traumatology).
SOCITRAS	Societa Italiana di Traumatologia della Strada (Italian Society of Road Traumatology).
SOFCOT	French Society of Orthopaedics and Trauma Surgery.
SOFIGO	The International Association of Supporters of FIGO.
sol	solution.
SOMOS	Society of Military Orthopaedic Surgeons (AAOS).
SOP	standard operating protocol.
sos	if necessary.
SOTOCAV	Sociedad de Ortopedia y Traumatologia de la Comunidad Autonoma Valenciana (only Spanish).
SOTRS	Sociedade de Ortopedia e Traumatologia do Rio Grande do Sul (only Portuguese).
sp. gr.	specific gravity.
SP-1	pregnancy-specific beta-1-glycoprotein.
SPC	septal perforator compression.
SPC	soybean phosphatidylcholine.
SPC	sphingosylphosphorylcholine.
SPC	spleen cells.
SPC	spontaneous phasic contractions.
SPC	Summary of Product Characteristics.
SPC	systemic to pulmonary collaterals.
SPD	phase difference" method.
spec	specimen.
SPECT	single photon emission computed tomography.
SPF	S-phase fraction.
SPF	sun protection factor.
S-phase	proliferative index % of tumor cells actively dividing at a given time,
SPIO	superparamagnetic iron oxide MRI enhancement.
S-PMI	subendocardial perioperative myocardial injury.
SPOHNC	Support for People with Oral and Head and Neck Cancer.
SQ	sq, subq., subcutaneous.
sq.	squamous.
SR	sedimentation rate.
SR	Show Racer pigeons.
SRIF	somatotropin release-inhibiting factor (somatostatin).
SRS	Scoliosis Research Society (also: AAOS Specialty Societies).
ss	one half.
SS	Salmonella-Shigella agar.
SS	systemic sclerosis.
ss. gl.	without glasses (or corrective lenses)
SSA	Social Security Administration (US).
SSC	side scatter (flow cytometry term).
SSCP	substernal chest pain.
SSD	sexual size dimorphism.
SSD	shaded-surface display.
SSD	single saturating dose.
SSD	single-strand damage (DNA).
SSD	Social Security disability.
SSD	source-skin distance.
SSD	source-surface distance.
SSD	speech-sound discrimination.
SSD	succinate semialdehyde dehydrogenase.
SSD	sum of square deviations.
SSD	syndrome ofsudden death.
SSE	soap suds enema.
SSE	Spine Society Of Europe.
SSEP	somatosensory evoked potentials.
SSER	somatosensory evoked response.
SSKI	saturated solution of potassium iodine.
SSM	Southern Sports Medicine (& Orthopaedic Center).
SSM	Superficial Spreading Melanoma.
SSR	sympathetic skin response.
SSRI	selective serotonin reuptake inhibitor.
SSS	sick sinus syndrome.
SSSS	staphylococcal scalded-skin syndrome.
SstII	restriction enzyme from Streptomyces stanford.
ST	esotropia.
ST	scaphotrapezial.
ST	sulfotransferases.
ST	syncytiotrophoblast.
st.	stage of disease.
Staph	Staphylococcus.
STAT	immediately.
STAT	signal transducers and activators of transcription.
STD	sexually transmitted disease.
STD	skin test dose.
STD	standart.
STH	somatotropin.
STI	systolic time intervals.
STIs	soft tissue infections.
STLN	soft tissue lateral neck.
STR	single twitch response (EMG).
STR	slow-twitch red (skeletal muscle).
Strep	Streptococcus.
STRPC	short TRPC.
STS	serological test for syphilis.
STS	single twitch stimulation (EMG).
STS	Society of Thoracic Surgeons.
STSG	split thickness skin graft.
STT	scapho-trapezo-trapezoidal.
STZ	streptozotocin.
subcu.	SC, , subcutaneous.
Subq	(sub cutis) subcutaneous.
SUDAAN	software for statistical analysis of correlated data.
SUDS	single-use diagnostic system.
SUFE (radiograph)	slip of the upper femoral epiphysis.
supp	suppository.
suppos	suppository.
surg	surgical.
SUs	substance users.
susp	suspension.
SUVs	unilamellar vesicles.
Sv	sievert.
SV	simian virus.
SV	stroke volume.
SV40	simian vacuolating virus no. 40.
SVA	sequential ventriculo-atrial pacing.
SVA	shell vial assay.
SVA	sinus of Valsalva aneurysms.
SVA	supraventricular arrhythmia.
SVA-IFA	shell vial assay-indirect immunofluorescent assay.
SVC	superior vena cava.
SVD	Swine Vesicular Disease.
SVE	of soil vapor extraction.
SVE	saline volume expansion.
SVE	seminal vesicle epithelium.
SVE	Sendai virus envelopes.
SVE	serum vitamin E.
SVE	significant villous edema.
SVE	small volume expansion.
SVE	sports vision evaluations.
SVE	Stressful Vital Events.
SVe	stroke volume echocardiography.
SVE	subcortical vascular encephalopathy.
SVE	supraventricular ectopy.
SVE	supraventricular extrasystole.
SVE	surveillance examinations.
SVE	sustained volume expansion.
SVG	saphenous vein graft.
SVI	stroke volume index.
SvO2	mixed venous hemoglobin saturation.
SVR	systemic vascular resistance.
SVT	supra ventricular tachycardia
SW	software.
SWA	slow-wave activity.
SWI	surgical wound infection.
SWOG	Southwest Oncology Group.
SWPS	Social Welfare Policy & Services.
SWT	systolic wall thickening.
Sx	signs and symptoms.
SX	sulfisoxazole.
Sx	symptom/s.
Sz	seizure.
T (493 abbreviations)
T sect	transverse section.
T&A	tonsillectomy and adenoidectomy.
T&C	type and crossmatch.
T&T	time and temperature.
T&T	touch and tone.
T	extent of primary tumor.
T	temperature.
T	thoracic, to be followed by number designating specific thoracic vertebra.
T	threonine.
T	thymine.
t.i.d.	tid, three times a day.
t.o.	telephone order.
T/S	transverse section.
T+S	type and screen.
T0	T1, T2, T3, size of tumor in staging cancers.
T1 - T12	thoracic vertebrae 1 - 12 (spine e.g. T1 = 1st thoracic vertebra).
T3	triiodothyronine.
T3RU	triiodothyronine resin uptake.
T4	thyroxine.
T4SA	thyroxine-specific activity.
TA	Technical Assistance.
TA	tolfenamic acid.
TAANOS	The American Academy of Neurological and Orthopaedic Surgeons.
tab	(s) tablet(s).
TAC	transient amplifying cells (cells that have the potential to complete a limited number of divisions before differentiating).
TAC	Trauma Association of Canada.
TACHY	tachycardia.
TAE	transarterial embolization.
TAH	total abdominal hysterectomy.
TAM	tamoxifen.
TAM	total active motion.
TAPVC	total anomalous pulmonary venous connection.
TAs	triggered activations.
TAT	tetanus antitoxin.
TAT	thematic apperception test.
TB	tuberculosis.
tbc.	TB, tuberculosis.
TBD	to be determined.
TBF	tail blood flow.
TBF	tentacle ball formation.
TBF	terbinafine.
TBF	thyroid blood flow.
TBF	tick-borne fever.
TBF	tissue blood flow.
TBF	total body fat.
TBF	tumor blood flow.
TBG	thyroid binding globulin.
TBI	2,4,5-tribromoimidazole.
Tbi	initial body temperature.
Tbi	intermediate tectobulbar pathway.
TBI	T- and B-cell epitopes containing Immunogen.
TBI	tetrapolar bioelectrical impedance.
TBI	thiazolobenzimidazole [1-(2,6-difluorophenyl)-1H,3H-thiazolo[3,4-a] benzimidazole].
Tbi	Thromboplastin Bilbao.
TBI	thrombotic brain infarction.
TBI	thyrotropin binding inhibition.
TBI	thyroid binding index.
TBI	thyroxine binding index.
TBI	time-based injection.
TBI	Tissue Banks International.
TBI	toe brachial index.
TBI	tooth brushing instruction.
TBI	total bilirubin.
TBI	total binding index.
TBI	total body impedance.
TBI	total body iron.
TBI	total body irradiation.
TBI	total bone index.
TBI	trabecular bone index.
TBI	transbronchial injection.
TBI	transbullar injections.
TBI	translid binocular interactor.
TBI	traumatic brain injury.
TBI	triamcinolone acetonide benzoyl-beta-amino-isobutyrate.
TBMM	total body muscle mass.
TBS	The Bethesda System.
TBS	to be scheduled.
TBSA	total body surface area.
tbsp	tablespoon
TBVF	trabecular bone volume fraction.
TBW	total body water.
TCA	thymus-derived chemotactic agent.
TCA	tricyclic antidepressant.
TCDB	turn, cough, deep breath.
TCF	tissue cage fluid.
TCID50	Tissue Culture Infectious Dose 50 %.
TCM	Traditional Chinese Medicine.
TCPC	tricalcium phosphate ceramic.
TCR	T-cell receptor.
TCRBCL	T-cell-rich B-cell lymphoma.
TCRBJ	TCR J beta.
TCRGR	T-cell receptor gene rearrangement (study).
TCT	thrombin clotting time.
TCU	transitional care unit.
TCV	tall-cell variant of papillary thyroid carcinomas.
TCV	turnip crinkle virus.
Td	adult tetanus toxoid and reduced-dose diphtheria toxoid.
TD	tardive dyskinesis,
TD	texture-defined.
TDA	toluenediamines.
TDA	Trade and Development Agency.
TDI	toluene diisocyanate (a highly volatile chemical known to cause occupational asthma in exposed workers).
TDLU	terminal-duct-lobular-units.
TdT	terminal deoxynucleotide transferase.
TDT	tooth decay test.
TDT	transmission disequilibrium test.
TDTH cells	a functional subset of T helper cells that are involved in delayed-type hypersensitivity reactions.
TDY	Temporary Duty.
TE	echo time (MRI).
TEC	thromboembolic complications.
TEC	transient erythroblastopenia of childhood.
TEC	transluminal extraction atherectomy.
TECA-LBO	total ear canal ablation-lateral bulla osteotomy.
TEDs	Thromboembolic Deterrent Stockings
TEDS	timed exposure diffusive sampler.
TEDS	transoesophageal echo-Doppler system.
TEDS	Treatment Episode Data Set.
TEE	transesophageal echocardiogram.
TEIL	tobacco EIN3-like.
TEM	Technical Error Measurement.
TEM	transmission electron microscopy.
Temp.	T, temperature
TEN-IBC	Trans-European Network--Integrated Broadband Communications.
TENS	transcutaneous electrical nerve stimulation.
TEOAEs	transiently evoked otoacoustic emissions.
TF	tail-flick.
TF	thoracic fluid content.
TFA	trifluoroacetic acid.
TFCC	triangular fibrocartilage complex.
TFPI	tissue factor pathway inhibitor.
TFT	thin-film transistor.
TFT	thrombus formation time.
TFT	thyroid function test.
TFT	tight filum terminale.
TFT	trifluorothymidine.
TG(6-)	6-Thioguanine (anti cancer drug).
TG	triglycerides.
TGE	transmissible gastroenteritis.
TGF	transforming growth factors.
TGF-α	tumor growth factor alpha.
TGF-β	tumor growth factor beta.
TGV	thoracic gas volume.
TGV	transposition of great vessels.
TH1	T helper type 1 cell.
TH2	T helper type 2 cell.
THA	tacrine hydrochloride.
THA	total hip arthroplasty (sample operative report).
THAM	T cell-activating molecule.
THBR	thyroid hormone binding ratio.
THBSO	total hysterectomy with bilateral salpingo-oophorectomy.
THC	delta-9-tetrahydrocannabinol the psychoactive substance in Cannabis sativa.
THI	thoracic impedance.
THP	total hip prosthesis.
Thr	threonine.
THR	total hip replacement/revision (sample operative report).
THV	terminal hepatic venule (central vein).
Thy-1	a highly abundant glycoprotein on the surface of thymocytes and neurons.
TIA	thanks in advance.
TIA	transient ischemic attacks.
TIBC	total iron-binding capacity.
tid	three times a day (Latin: ter in die).
TIFA	Trade and Investment Framework Agreement.
TIG	tetanus immune globulin.
TIGR	The Institute for Genomic Research.
TIL	tumor-infiltrating lymphocytes.
TIMI	Thrombolysis in Myocardial Infarction.
TIMP	tissue inhibitor of metalloproteinase.
TiO2	titanium dioxide.
TIPS	transjugular intrahepatic portosystemic shunt.
TIPSS	transjugular intrahepatic portosystemic stent shunts.
TIS	titanium interbody spacers.
TJ	tetrajoule.
TJ	triceps jerk.
TJ-10	Saiko-keishi-to, herbal medicine.
TJ-41	Hochu-ekki-to (a Japanese herbal medicine).
TJ-43	Liu-Jun-Zi-Tang, a herbal medicine exerting gastroprotective action.
TJ-48	Juzen-taiho-to, a kampo medicine.
TJ-9	Sho-saiko-to, a herbal medicine.
TJ-96	saiboku-to (a herbal preparation).
TJ-960	sho-saiko-to-go-keishi-ka- shakuyakuto (Japanese herbal medicine), a compound known to have free radical scavenging activity.
TJA	total joint arthroplasty.
TJD	transient job disability.
TJD	traumatic joint disease.
TJs	tight junctions.
TK	tyrosine kinase.
TKA	total knee arthroplasty.
TKE	total knee extension.
TKN	total Kjeldahl nitrogen (waste waters treatment).
TKO	to keep open.
TKR	total knee replacement/revision.
TLA	three letter abbreviation/acronym (ha, ha!).
TLC	thin-layer chromatography.
TLC	total lung capacity.
TLD	thermoluminescent dosimeters.
TLI	thymidine labeling index.
TLI	total lymphoid irradiation.
TLR	target lesion revascularization.
TLSO	thoracolumbosacral orthosis.
TLV	threshold limit values.
TM	transmembrane.
TM	tympanic membrane.
TMA	thrombotic microangiopathy.
TMA	tissue microarray infostructure.
TMA	transmetatarsal amputation.
TMA-Gly:CPH	poly[trimellitylimidoglycine-co-1,6-bis(carboxyphenoxy)hexane] - a novel class of polymers with mechanical properties similar to cancellous bone that are being investigated for their ability to be used in weight-bearing areas for orthopedic applications.
TMD	transient myeloproliferative disorder.
TMDC	transverse magnetization decay curve.
TMEP	telangiectasia macularis eruptiva perstans.
TMG	toxic multinodular goiter.
TMGA	tetramethylene glutaric acid.
TMJ	(temporalist mandibulae junctio) temporomandibular joint.
TMP	trimethoprim.
TMP-SMX	trimethoprim-sulfamethoxazole.
TMR	transmyocardial revascularization.
TMV	tobacco mosaic virus.
TNF	tumor necrosis factor.
TNI	total needed irradiation.
TNM	tumor, nodes, metastases.
TNT	trinitrotoluene.
TNTC	too numerous to count.
TOA	Texas Orthopaedic Association.
TOC	total organic carbon.
TOD	target organ damage.
TOF	train-of-four (EMG).
top	topically.
TOPV	oral attenuated poliovirus with types 1, 2, and 3.
TOR	total outflow resistance.
TORCH	congenital infections with: T = toxoplasmosis; O = other; R = rubella; C = cytomegalic inclusion disease; H = hepatitis B and herpes.
TOS	thoracic outlet syndrom.
Tox	toxic, toxicology, toxicologic.
TP	thyropharyngeus muscle.
TP	total pancreatectomy.
TP	total platinum.
TP-5	thymopentin.
TPA	tissue plasminogen activator.
TPI	Treponema pallidum immobilization test.
T-PMI	transmural perioperative myocardial infarction.
TPN	thalamic projection neuron.
TPN	total parenteral nutrition.
TPN	transition protein.
TPN	triphosphopyridine nucleotide.
TPNAC	total parenteral nutrition-associated cholestasis.
TPP	thiamin pyrophosphate.
TPPA	Treponema pallidum.
TPR	temperature, pulse, respirations.
TPR	total peripheral resistance.
TPUR	transperineal urethral resection.
TR	Texas red.
tr.	tinct., tincture.
TR/TE	repetition time/echo time.
TRAM-flap	one type of breast reconstruction.
TRAP	tartrate resistant acid phosphatase.
TRAP	telomeric repeat amplification protocol.
TRH	thyrotropin-releasing hormone.
TRIS	tris(hydroxymethyl)aminomethane.
TRK	transketolase.
TRP II	tricho-rhino-phalangeal syndrome type II.
TRP	transient receptor potential.
Trp	tryptophan.
TRPA	tryptophan-rich prealbumin.
TRPC	transient receptor potential channel proteins.
TrPI	treatment plan.
TRPM	testosterone-repressed prostate message.
TRPO	tryptophan oxygenase.
TRPS	trichorhinophalangeal syndrome.
TRPT	theoretical renal phosphorus threshold.
TRR	total respiratory resistance.
TRS	testicular regression syndrome; total reducing sugars; tubuloreticular structure.
TrS	trauma surgery.
TRSV	tobacco ringspot virus.
TRT	testosterone replacement therapy.
TRT	thoracic radiotherapy; transfer ribonucleic acid threonine.
TRU	task-related unit; turbidity-reducing unit.
TRUS	transrectal ultrasonography.
TRV	tobacco rattle virus.
TRVV	total right ventricular volume.
TRX	thioredoxin trx traction.
Tryp	tryptophan.
Ts	skin temperature; tosylate.
TS	T suppressor (cell)
TS	Takayasu syndrome.
TS	Tay-Sachs (disease).
Ts	temperature sensitivity.
TS	temperature, skin.
TS	temporal stem.
TS	tensile strength.
TS	test solution.
TS	thermal stability.
TS	thoracic surgery.
TS	thymidylate synthetase.
TS	time required to complete the S phase of the cell cycle.
TS	tissue space.
TS	total solids (in urine).
TS	Tourette syndrome.
TS	toxic substance.
TS	toxic syndrome.
TS	tracheal sound.
TS	transferrin saturation.
TS	transitional sleep.
TS	transsexual.
TS	transverse section.
TS	transverse sinus.
TS	trauma score.
TS	treadmill score.
TS	triceps surae.
TS	tricuspid stenosis.
TS	triple strength.
TS	tropical sprue.
TS	trypticase soy (plate).
Ts	tsp, teaspoon.
TS	tuberous sclerosis.
TS	tumor-specific.
TS	Turner syndrome.
TS	type-specific.
TSA	technical surgical assistance.
TSA	toluene sulfonic acid.
TSA	total shoulder arthroplasty.
TSA	total solute absorption.
TSA	toxic shock antigen.
TSA	transcortical sensory aphasia.
TSA	trypticase-soy agar.
TSA	tumor surface antigen.
TSA	tumor-specific antigen.
TSA	type-specific antibody.
TSAb	thyroid-stimulating antibody.
TSAP	toxic-shock-associated protein.
TSAS	total severity assessment score.
TSAT	tube slide agglutination test.
TSB	total serum bilirubin; trypticase soy broth; tryptone soy broth.
TSBA	total serum bile acids.
TSBB	transtracheal selective bronchial brushing.
TSC	technetium sulfur colloid; thiosemicarbazide; transverse spinal sclerosis; tuberous sclerosis.
TSCA	Toxic Substances Control Act.
TSCS	Tennessee Self-Concept Scale.
TSD	target-skin distance; Tay-Sachs disease; theory of signal detectability.
TSE	testicular self-examination; tissue-specific extinguisher; total skin examination; trisodium edetate.
TSEB	total skin electron beam.
TSEM	transmission scanning electron microscopy.
TSES	Target Symptom Evaluation Scale.
T-set	tracheotomy set.
TSF	testicular feminization syndrome; thrombopoiesis-stimulating factor; total systemic flow; triceps skinfold.
TSG	tumor-specific glycoprotein.
TSGP	tumor-specific glycoprotein.
TSH	thyroid stimulating hormone.
TSH	transient synovitis of the hip.
TSHA	thyroid-stimulating hormone, alpha chain.
TSHB	thyroid-stimulating hormone, beta chain.
TSHR	thyroid-stimulating hormone receptor.
TSH-RF	thyroid-stimulating hormone-releasing factor.
TSH-RH	thyroid-stimulating hormone-releasing hormone.
TSI	thyroid stimulating immunoglobulin.
TSI	triple sugar iron.
TSIA	total small intestine allotransplantation.
TSIA	triple sugar iron agar.
tSIDS	totally unexplained sudden infant death syndrome.
TSL	terminal sensory latency.
TSM	type-specific M protein.
Tsp	teaspoon.
TSP	testis-specific protein.
TSP	thrombin-sensitive protein.
TSP	thrombospondin.
TSP	total serum protein.
TSP	total suspended particulate.
TSP	trisodium phosphate.
TSP	tropical spastic paraparesis.
TSPA	thiotepa.
TSPAP	total serum prostatic acid phosphatase.
TSPL	transplant.
TSPP	tetrasodium pyrophosphate.
TSR	target site restenosis.
TSR	theophylline sustained release.
TSR	thyroid to serum ratio.
TSR	total systemic resistance.
TSS	total suspended solids.
TSS	toxic shock syndrome.
TSS	tropical splenomegaly syndrome.
TSSA	tumor-specific cell surface antigen.
TSSE	toxic shock syndrome exotoxin.
TSST	toxic shock syndrome toxin.
TSST-1	toxic shock syndrome toxin-1.
TST	thiosulfate sulfur-transferase.
TST	thromboplastin screening test.
TST	total sleep time.
TST	transforming sequence, thyroid.
TST	treadmill stress test.
TST	tricipital skinfold thickness.
TST	tumor skin test.
TSTA	toxoplasmin skin test antigen.
TSTA	tumor-specific tissue antigen.
TSTA	tumor-specific transplantation antigen.
TSU	triple sugar urea (agar).
TSV	total stomach volume.
TSVR	total systemic vascular resistance.
TSY	trypticase soy yeast.
TT	tablet triturate.
TT	tactile tension.
TT	tactile threshold.
TT	tendon transfer.
TT	test tube.
TT	testicular torsion.
TT	tetanus toxin.
TT	tetanus toxoid.
TT	tetrathionate.
TT	tetrazol.
TT	therapeutic touch.
TT	thrombin time.
TT	thrombolytic therapy.
TT	thymol turbidity.
TT	tibial tubercle.
TT	tilt table.
TT	tolerance test.
TT	total thyroxine.
TT	total time.
TT	transferred to.
TT	transient tachypnea.
TT	transit time.
TT	transthoracic.
TT	transtracheal.
TT	tube thoracostomy.
TT	tuberculin test.
TT	tuberculoid (in Ridley-Jopling Hansen disease classification).
TT	tumor thrombus.
TT	turnover time.
TT2	total diiodothyronine.
TT3	total triiodothyronine.
TT4	total thyroxine.
TTA	tetanus toxoid antibody.
TTA	timed therapeutic absence.
TTA	total toe arthroplasty.
TTA	transtracheal aspiration.
TTAP	threaded titanium acetabular prosthesis.
TTB	third trimester bleeding.
TTC	triphenyltetrazolium chloride (stain for lactic dehydrogenase).
TTC	triphenyltetrazolium chloride.
TTC	T-tube cholangiogram.
TTD	temporary total disability.
TTD	tissue tolerance dose.
TTD	transient tic disorder.
TTD	transverse thoracic diameter.
TTD	trichothio-dystrophy.
TTE	transthoracic echocardiography.
TTF-1	thyroid transcription factor 1.
TTFD	tetrahydrofurfuryldisulfide.
TTG	T-cell translocation gene.
TTG	telethermography.
TTG	tellurite, taurocholate, and gelatin.
TTGA	tellurite, taurocholate, and gelatin agar.
TTH	thyrotropic hormone.
TTH	tritiated thymidine.
TTI	tension-time index.
TTI	timepto-intubation.
TTI	time-tension index.
TTI	torque-time interval.
TTI	transtracheal insufflation.
TTN	transient tachypnea.
TTP	thrombotic thrombocytopenic purpura.
TTR	transthyretin.
TTV	therapeutic trial visit.
TTWB	toe touch weight bearing.
TTX	tetrodotoxin.
TU	tuberculin units (in Mantoux test).
TUIP	transurethral incision of the prostate.
TULIP	transurethral ultrasound-guided laser induced prostatectomy.
TUMT	transurethral microwave thermotherapy.
TUNA	transurethral needle ablation (prostatic).
TUNEL	TdT-mediated-dUTP nick end labeling, enzymatic labeling of DNA fragments in apoptotic cells.
TUR	transurethral resection.
TURB	transurethral resection of bladder.
TURBT	transurethral resection of bladder tumor.
TURP	transurethral resection of the prostate; transurethral prostatectomy.
TV	total volume.
TVA	temporal (beat-to-beat) variability of repolarization in amplitude.
TvC	treatment versus control.
TVF	target vessel failure.
TVH	total vaginal hysterectomy.
TVH	turkey virus hepatitis.
TVR	target vessel restenosis.
TVR	target vessel revascularization.
TVT	target value tailored apheresis.
TVT	temporal (beat-to-beat) variability of repolarization in time.
TVT	tension-free vaginal tape.
TVT	thermal vascular test.
TVT	total ventilation time.
TVT	Transmissible venereal tumour.
TvT	treatment versus treatment.
TVT	Trivittatus.
TVT	tunica vaginalis testis.
TVUS	transvaginal ultrasound.
TWG	total weight gain.
Tx	therapy or treatment.
TXA2	thromboxane A2.
TXB2	thromboxane B2.
Tyr	tyrosine.
U (267 abbreviations)
U&C	urethral and cervical.
U&C	usual and customary.
U&Es	urea and electrolytes
U	congenital limb absence.
U	in electrocardiography, an undulating deflection that follows the T wave.
U	internal energy.
U	International Unit of enzyme activity.
U	Mann-Whitney rank sum statistic.
U	potential difference (in volts).
U	ulcer.
U	ulna.
U	ultralente (insulin).
U	umbilicus.
U	uncertain.
U	unerupted.
u	unified atomic mass unit.
U	unit.
U	universial application (residency).
U	unknown.
U	unsharpness.
U	upper.
U	uracil.
U	uranium.
U	urea.
U	urethra.
U	uridine.
U	uridylic acid.
U	urinary concentration.
U	urine.
U	urology.
U	uterus.
U	uvula.
u	velocity.
U	volume velocity.
U/2	upper half.
U/3	upper third.
U/A	uric acid.
U/A	urinalysis.
u/ext	upper extremity.
U/S	ultrasound.
UA	absorption unsharpness.
UA	ultra-audible.
UA	ultrasonic arteriography.
UA	umbilical artery.
UA	unauthorized absence.
UA	unit of analysis.
UA	unstable angina.
UA	upper airways.
UA	upper arm.
UA	uric acid.
UA	uridylic acid.
UA	urinalysis, urine analysis.
ua	urinalysis.
UA	urinary aldosterone.
UA	uronic acid.
UA	uterine aspiration.
UA/C	uric acidlcreatinine (ratio).
UAC	umbilical artery catheter.
UAE	unilateral absence of excretion.
UAE	urine albumin excretion.
UAEM	University Association for Emergency Medicine.
UAI	uterine activity interval.
U-AMY	urinary amylase.
UAN	uric acid nitrogen.
UAO	upper airway obstruction.
UAP	unlicensed assistive personnel.
UAP	unstable angina pectoris.
UAP	urinary acid phosphatase.
UAP	urinary alkaline phosphatase.
UAPA	unilateral absence of pulmonary.
UAR	upper airway resistance.
UAR	uric acid riboside.
UAS	upper abdomen surgery.
UAS	upstream activation site.
UASA	United Amputee Services Association.
UAU	uterine activity unit.
UB	ultimobranchial body.
UB	Unna boot.
UB	upper back.
UB	urinary bladder.
UBA	undenaturated bacterial antigen.
UBB	ubiquitin B.
UBBC	unsaturated vitamin B12 binding capacity.
UBC	ubuquitin C.
UBC	University of British Columbia (brace).
UBE	ubiquitin-activating enzyme.
UBG	Ubg urobilinogen.
UBI	ultraviolet blood irradiation.
UBL	undifferentiated B-cell lymphoma.
UBN	urobilin.
UBO	unidentified bright object.
UBO	upper body obesity.
UBP	ureteral back pressure.
UBS	unidentified bright signal.
UBW	usual body weight.
UC	ulcerative colitis.
UC	ultracentrifugal.
UC	umbilical cord.
UC	unchanged.
UC	unclassifiable.
UC	unconscious.
UC	undifferentiated cells.
UC	unit clerk.
UC	unsatisfactory condition.
UC	untreated cells.
UC	urea clearance.
UC	urethral catheterization.
UC	urinary catheter.
UC	urine concentrate.
UC	urine culture.
UC	uterine contractions
UCB	unconjugated bilirubin.
UCBC	umbilical cord blood culture.
UCD	urine collection device.
UCD	usual childhood diseases.
UCDS	uniform clinical data set.
UCE	urea cycle enzymopathy.
UCG	ultrasonic cardiography.
UCG	urinary chorionic gonadotropin.
UCHD	usual childhood diseases.
UCI	unusual childhood illness.
UCI	urethral catheter in.
UCI	urinary catheter in.
UCL	ulnar collateral ligament.
UCL	upper collateral ligament.
UCL	upper confidence limit.
UCL	upper control limit.
UCL	urea clearance.
UCLP	unilateral cleft of lip and palate.
UCO	ultrasonic cardiac output.
UCOD	underlying cause of death.
UCP	uncoupling protein.
UCP	urinary coproporphyrin.
UCP	urinary C-peptide.
UCPT	urinary coproporphyrin test.
UCR	unconditioned response.
UCR	usual, customary, and reasonable (fees).
UCS	unconditioned stimulus.
UCS	unconscious.
ucs	unconscious.
UCS	uterine compression syndrome.
UCT	urological care table.
UCTD	undifferentiated (unclassifiable) connective tissue disease.
uCTD	undifferentiated connective tissue disease.
UCV	uncontrolled variable.
UD	ulcerative dermatosis.
UD	ulnar deviation.
UD	underdeveloped.
UD	undetermined.
UD	unit dose.
UD	urethral dilatation.
UD	urethral discharge.
UD	uridine diphosphate.
UD	uroporphyrinogen decarboxylase.
UD	uterine delivery.
UDC	usual diseases of childhood.
UDCA	ursodeoxycholic acid.
UDKase	uridine diphosphate kinase.
UDN	ulcerative dermal necrosis.
UDO	undetermined origin.
UDP	uridine diphosphate.
UDPG	uridine diphosphate glucose.
UDPG	urine diphosphoglucose.
UDPGA	uridine diphosphate glucuronic acid.
UDPGT	uridine diphosphate glucuronosyl transferase.
UDR-BMD	ultradistal radius bone mineral density.
UDRP	urine diribose phosphate.
UDS	ultrasound Doppler sonography.
UDS	uniform data system.
UDS	unscheduled deoxynucleic acid synthesis.
UDUN	under developed under nourished.
UE	(extremitas) upper extremity.
UE	uncertain etiology.
UE	under elbow.
UE	uninvolved epidermis.
UE	upper esophagus.
UE	upper extremity.
uE~	unconjugated estriol.
UEG	ultrasonic encephalography.
UEG	unifocal eosinophilic granuloma.
UEHB	uniform effective health benefits.
UEL	upper explosive limit.
UEM	universal electron microscope.
UEMC	unidentified endosteal marrow cell.
UES	upper esophageal sphincter.
UES	upper esophageal sphincter.
UF	film unshapness.
UF	ultrafiltration.
UF	ultrafine.
UF	ultraflltrate.
UF	ultrasonic frequency.
UF	universal feeder.
UF	unknown factor.
UF	urinary formaldehyde.
UFA	unesterifled fatty acid.
UFB	urinary fat bodies.
UFC	urinary free cortisol.
UFD	ultrasonic flow detector.
UFD	unilateral facet dislocation.
UFFI	urea formaldehyde foam insulation.
UFL	upper flammable limit.
UFP	ultrafiltration pressure.
UFR	ultrafiltration rate.
UFR	urine filtration rate.
uFSH	urinary follicle-stimulating hormone.
UG	geometric unsharpness.
UG	urogastrone.
UG	urogenital.
UGD	urogenital diaphragm.
UGDP	University Group Diabetes Project.
UGF	unidentified growth factor.
UGH	uveitis-glaucoma-hyphema (syndrome).
UGH+	uveitis-glaucoma-hyphema plus vitreous hemorrhage (syndrome).
UGI	(see GI) upper gastrointestinal.
UGIB	upper gastrointestinal biopsy.
UGIB	upper gastrointestinal bleeding.
UGIH	upper gastrointestinal hemorrhage.
UGIS	upper gastrointestinal series.
UGT	uridine diphosphate-glucuronosyltransferase.
UH	82 universal billing document (1982).
UH	unfractionated heparin.
UHDPE	ultra-high-density-polyethylene.
UHF	ultra high frequency
UHF	uterine blood flow.
UHMWPE	ultra-high molecular weight polyethylene.
UICC	Union Internationale Contre le Cancer - International Union Against Cancer.
UIP	usual interstitial pneumonia.
ULN	upper limits of normal.
ULQ	upper left quadrant.
ultra	ultrasound.
umb.	umbilicus (navel).
UMN	upper motor neuron (signs).
UNDP	United Nations Development Program.
UN-E	ulnar neuropathy at the elbow.
UNFPA	United Nations Family Planning Association.
ung	ointment.
UNK	unknown.
UO	urethral catheter out.
UO	urinary catheter out.
UP	ultrafilterable platinum.
UP	unipolar.
UPJ	ureteropelvic junction.
UPOJ	University of Pennsylvania Orthopaedic Journal.
UPR	unfolded protein response.
UPR	unipolar recurrent depression.
UPr/C	urine protein-to-creatinine ratios.
UPSI	unprotected sexual intercourse.
UPT	urinary pregnancy test.
ur.	urine.
URI	upper respiratory tract infection.
Urol.	urology.
URQ	upper right quadrant.
URTI	upper respiratory tract infection.
US	ultrasound.
USAN	United States Adopted Names.
USDA	US Department of Agriculture.
USH	usual state of health.
USP	US pharmacopeea.
USPHS	United States Public Health Service.
UST	ultrasound therapy.
UTD	up to date.
UTI	urinary tract infection.
UUA	urokinase urine activity.
UV	ultraviolet.
UVJ	ureterovesical junction.
UVR	ultra violet radiation.
UWUN	underweight under nourished.
V (88 abbreviations)
V	venous invasion.
V/Q	ventilation/perfusion.
V2	second compartment volume.
V3	third compartment volume.
VA	alveolar volume.
VA	valproic acid.
VA	Veterans Administration (US).
VA	visual acuity.
VAC	ventriculoatrial conduction.
VACTERL syndrome	abnormalities of vertebrae, anus, cardiovascular tree, trachea, esophagus, renal system, and limb buds associated with administration of sex steroids during early pregnancy.
VaD	vascular dementia.
VAD	ventricular assist device.
VAD	vincristine, doxorubicin and dexamethasone.
VAERS	Vaccine Adverse Events Reporting System (FDA).
VAHS	virus-associated hemophagocytic syndrome.
VAS	vibroacoustic stimulation.
VAS	visual analogue scale.
VATER	vertebral defects, anal atresia, tracheoesophageal fistula with esophageal atresia, and radial and renal anomalies.
VATS	video-assisted thoracic surgery.
VB	B chain variable (gene segments of T-cell receptor).
VBD	vertebral bone density.
VBG	venous blood gas.
VBH	Vogele-Bale-Hohner head holder.
VC	colored vision.
VC	vital capacity.
VCA	viral capsid antien (in EBV-IM).
VCAM	vascular cell adhesion molecule (endothelial cell adhesion molecule).
VCAM-1	vascular cell adhesion molecule 1.
VCE smear	a cytologic smear of material obtained from the vagina, ectocervix, and endocervix.
VCE	vaginal administration of conjugated equine estrogens.
VCFS	velocardiofacial syndrome.
VCU	voiding cystourethrogram.
VCUG	voiding cystourethrogram.
VD	venereal disease.
VD	vessel diameter.
VD-GC	vacuum distillation gas chromatography.
VDRL	Venereal Disease Research Laboratory (test for syphilis).
VEF	ventricular ejection fraction.
VEGF	vascular endothelial cell growth factor.
VEP	visually evoked potentials.
VER	visual evoked response.
VF	ventricular fibrillation.
VF	ventricular flutter.
VF	visual field, field of vision.
VFC	Vaccines for Children program.
Vfib	Ventricular fibrillation.
VHA	Veterans Health Administration (US).
VHD	ventricular heart disease.
VIP	vasoactive intestinal peptide.
VISI	volar intercalary wrist instability.
VLDL	very low density lipoprotein.
VLH	ventrolateral hypothalamus.
VLO	ventrolateral outflow.
VM	ventricular muscle.
VM-26	Teniposide (anti cancer drug)
VMA	vanillylmandelic acid (urine levels concordant to serum catecholamine levels).
VMCH	Vinyl acetate - maleic acid - vinyl chloride copolymer.
VMO	vastus medialis obliquus (a muscle).
VMO	visiting medical officer.
vo	verbal order.
VP-16	Etoposide (anti cancer drug).
VPC	ventricular premature contractions.
VPF	vascular permeability factor.
VPL	ventral posterolateral.
VPM	ventral posteromedial.
VPPIM	Vinyl polysiloxane putty impression material.
VPRC	volume packed red cells.
VQ	(scan), ventilation/perfusion scan.
VRE	vancomycin-resistant enterococcus.
VRO	vertical ramus osteotomy.
vs	visit.
VS	vs, vital signs.
VSA	vital signs absent.
VSD	ventricular septal defect.
VSO	vertical sagittal split osteotomy.
VSP	variable screw placement.
VSS	vital signs stable.
VT	tidal volume.
VT	ventricular tachycardia.
VTE	venous thromboembolism.
VTEC	verotoxin producing enteropathogenic Escherichia coli.
VTNR	vessel-to-tissue noise ratio.
VTP	velocity/time profile.
VV	varicose veins.
VWD	von Willebrand Disease.
VWF	von Willebrand factor.
VZIG	varicella-zoster immune globulin.
VZV	varicella-zoster virus.
W (50 abbreviations)
w.b.c.	WBC, white blood cell, white blood cell count.
w/	with.
w/a	when awake.
w/c	wheelchair.
w/o	without.
w/v	weight by volume.
WAIS	Wechsler Adult Intelligence Scale.
WB	Western blot.
WBAA	whole blood acetaldehyde assay.
WBAT	weight bearing as tolerated.
WBC	white blood cell/count.
WBS	skin wound breaking strength.
WC	white cells.
WC	white collar.
WC	whole cell.
WC/rCTB	whole cell/recombinant B subunit cholera vaccine.
WC-2	White Carneau pigeons.
WCC	white cell count
WCI	Washington Cancer Institute.
WD	well-developed.
WDE	wound dressing emulsion.
WDWN	well-developed well-nourished.
W-E	wide excision
WF	W/F, white female.
WFL	Wistaria floribunda.
WFL	within functional limits.
WG	Wegener's granulomatosis.
WHO	World Health Organization.
Whp	whirlpool.
WIC	Special Supplemental Food Program for Women, Infants, and Children.
WISC	Wechsler Intelligence Scale for Children.
wk.	week.
WLT	Warthin-like papillary carcinoma of the thyroid.
WM	W/M, white male
WM	Waldenström's macroglobulinemia.
W-MPP	water MPP (multipurpose phantoms).
WN	well-nourished.
WN	West Nile virus.
WNL	within normal limits.
WOA	Western Orthopaedic Association.
WOC	World Orthopaedic Concern.
Wow	Weakener of white (a locus is described in Drosophila melanogaster that modifies the expression of the white eye color gene).
WOW-1	a novel monovalent ligand-mimetic antibody.
WPD	warm, pink, dry (skin signs).
WPOA	Western Pacific Orthopaedic Association (Australian Chapter).
WRT	with relation to.
WSCA	Washington State Chiropractic Association.
wt	weight.
WTO	World Trade Organization.
WW	white woman.
X (11 abbreviations)
X	multiplied by, times.
XIP	x-ray in plaster.
XLD	xylose lysine deoxycholate agar.
XP	xeroderma pigmentosa.
XR	x-ray.
XRD	x-ray diffraction.
XRN	X-linked recessive nephrolithiasis.
XRT	radiotherapy.
XT	exotropia.
XX	female sex chromosome.
XY	male sex chromosome.
Y (20 abbreviations)
y	classification after initial multimodal treatment.
Y	Y chromosome.
Y	yttrium, tyrosine, pyrimidine nucleoside.
Y	Yttrium.
y/o	years old.
Y-90	Yttrium 90.
YAC	yeast artificial chromosome.
YAG	yttrium-aluminum-garnet (laser).
Yb	ytterbium.
Yd.	yard.
YES	Youth Exchange Scheme.
YFEC	Youth Forum of the European Communities.
yoa	years of age.
YOB	year of birth.
YPLL	years of potential life lost.
Yr	year.
yr.	year.
YRBS	Youth Risk Behaviour Survey.
YST	Yolk sac tumor.
YVS	Yorkshire Veterinary Society (UK).
Z (18 abbreviations)
ZAI	Zero Administrative Initiative.
ZAP-70	tyrosine kinase involved in signal transduction.
ZBB	Zero Base Budgeting.
ZDV	Zidovudine.
ZEEP	zero end-expiratory pressure.
ZFW	Health insurance sickness scheme for employees (Netherlands).
ZIF	Zero Insertion Force.
ZIFT	Zygote Intrafallopian Transfer.
ZIG	zoster immune globulin.
ZIP	Zigzag In-line Package.
ZIP	Zoster Immune Plasma.
ZL	Central Laboratory of Pharmacists (Germany).
Zn	zinc.
Zr	zirconium.
ZSE	Zoological Spongiform Encephalopathy.
ZSL	Zoological Society of London.
ZSR	zeta sedimentation rate.
ZZ	ZZ genotype (deficiency of ? 1-antitrypsin).