List of medical abbreviations

This is a list of medical acronyms and abbreviations.

0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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0–9

# Fracture
#NOF Fracture to the neck of the femur
5-HT Serotonin 5-Hydroxytryptamine

A

B

C

D

E

EACA Epsilon-aminocaproic acid
EBM Evidence-based medicine
EBM Expressed Breast Milk
EC Enterically Coated
ECG Electrocardiogram
EDRF Endothelium-derived relaxing factor
EEG Electroencepholgram
EKG Electrocardiogram
ECPW endoskopowa cholangiopankreatografia wsteczna
E Erythrocytes
ED Emergency department
EDD Estimated date of discharge
EF Ejection Fraction
EGF Epidermal Growth Factor
EKG Electrocardiogram
EMLSCS Emergency Lower Segment Caesarian Section
ELLSCS Elective Lower Segment Caesarian Section
ELISA Enzyme-Linked Immunosorbent Assay
EMC Encephalomyocarditis
EMF Endomyocardial fibrosis
EMG Electromyography
ENT Ear Nose and Throat. (Otolaryngology)
EENT eyes, ears, nose, throat
EPH Edema Proteinuria Hypertension
EPO Erythropoietin
ERCP Endoscopic Retrograde Cholangiopancreatography
ESL Extracorporeal Shockwave Lithotripsy (also ESWL) - see lithotriptor
ESR Erythocyte sedimentation rate
ESWL Extracorporeal Shock Wave Lithotripsy (also ESL) - see lithotriptor
ET Endothelin
ETT Endotracheal tube
ETOH ethanol or ethyl alcohol
EUS Endoscopic Ultrasonography

F

G

H

I

K

K Potassium (in German, Kalium)
Kcal [Kilocalorie, calorie]
kg [kilogram]
KUB [kidney, ureter, bladder (x-ray)]

L

M

N

O

OA osteoarthritis
OB-GYN Obstetrics and gynecology
O.C.D. Obsessive-compulsive disorder
O.D. right eye (Latin oculus dexter)
O.D. overdose
O/E on examination
OGTT Oral glucose tolerance test
OP outpatient department
O.S. left eye (Latin oculus sinister)

P

Q

qh,ever hour

R

S

T

U

V

W

Z

Non-standard

The following are considered dangerous, non-standard abbreviations because their meanings could be easily misunderstood.

The Latin origin of the abbreviations is given in italics.

a.c. Before food, ante cibum.
a.d. Right ear, auris dexter.
ad. Freely as wanted, ad libitum.
a.l. Left ear, aurix laevus.
alt. die Every other day, alternus die.
alt. h. Every other hour, alternus horis.
a.m. Morning, ante meridiem.
aq. Water, aqua.
a.s. Left ear, auris sinister.
a.u. Each ear, auris utro.
aurist. Ear drops, auristillae.
b.d. Twice a day, bis die.
b.i.d. Twice a day, bis in die.
gtt. Drop, gutta.
h. Hour hora.
h.s. At bedtime, hora somni.
i.d. during the day.
i.d. the same, idem.
I.D. Infectious Disease.
i.d. intradermal, between the layers of the skin.
mane In the morning, mane
narist. Nasal drops, naristillae
Nocte At night, nocte.
o.c. Eye ointment, oculentum.
o.d. Daily, omni die.
o.d. Right eye, oculus dexter.
o.l. Left eye, oculus laevus.
o.m. In the morning, omni mane.
o.n. At night, omni nocte.
o.s. Left eye, oculus sinister.
o.u. Each eye, oculus utro.
p.c. After food, post cibum.
p.m. Afternoon, post meridiem.
p.o. Orally, per os.
p.r. Rectally, per rectum.
p.r.n. As occasion requires (as needed), pro re nata.
p.v. Vaginally, per vaginum.
q. every, quaque.
q.2.h. Every two hours, quaque 2 hora.
q.4.h. Every four hours, quaque 4 hora.
q.6.h. Every six hours, quaque 6 hora.
q.8.h. Every eight hours, quaque 8 hora.
q.d. Everyday, quaque die.
q.d.s. Four times a day, quater die sumendus.
q.h. Every hour, hourly. quaque hora.
q.i.d. Four times a day, quater in die.
q.q.h. Every four hours, quarta quaque hora.
q.s. A sufficient quantity; quantum sufficiat.
s.i.d. Once a day, semel in die.
Sig. or S. Write on the label, signa.
SL. Sublingual, under the tongue, sub linguam
Stat. Immediately, with no delay, statim.
t.d.s. Three times a day, ter die sumendus.
t.i.d. Three times a day, ter in die.
top. Topically, applied to the skin.
ut dict. or u.d. As directed, ut dictum.
ung. Ointment, unguentum.

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