Path Medical Abbreviations

c/o

complaining of

NPO

Nothing by mouth (no food or drink)

“nil per os”

hx

history (medical)

WNL

within normal limits

Tx

Treatment

b.i.d

twice a day

b.i.n

twice a night

bx

biopsy

ca

cancer

CC

chief complaint

CHF

congenital heart failure

CIS

carcinoma in situ

COPD

chronic obstructive pulmonary disease

CXR

chest x-ray

required by some jobs to scan for TB

DOA

dead on arrival

ddx

differential diagnosis

dx

diagnosis

FBS

fasting blood sugar

FUO

fever of unknown origin

h/o

history of

HPI

history of present illness

IM

intramuscular

LP

lumbar puncture

MI

myocardial infraction

MRI

Magnetic Resonance Imaging

NGT

naso gastric tube

NKA

no known allergies

O.D

ocular dextor

right eye

O.S

oculuar sinister

left eye

OTC

over the counter

p.o

“per os“

orally

prn

pro re nata

as needed

PSA

prostate specific antigen

PT

prothrombin

UA

urinalysis

yo

years old

HA

Headache