Medical Abbreviations

AC

before meals

ad lib

as desired

AM

in the morning

AMA

against medical advice

bid

twice a day

BRP

bathroom privileges

BSA

body surface area

C

celsius

DAT

diet as tolerated

DC

discontinue

F

Fahrenheit

HOB

head of bed

I & O

intake and output

LBM

last bowel movement

mL

millimeter

NAS

no added salt

NKA

no know allergies

NKDA

no know drug allergies

NOS

not otherwise specified

NPO

nothing by mouth

NS

normal saline

OOB

out of bed

pc

after meals

PCA

patient-controlled analgesia

po

by mouth

PM

afternoon

PRN

as needed

q 8 h

every 8 hours

qs

quantity sufficient

R/O

rule out

R/T

related to

Rx

treatment/prescription

stat

immediately

SL

sublingual

tid

three times a day

UO

urine output

angio

blood vessel

brady

slow

chole

bile

cyano

blue

sto

urinary bladder

derma

skin

dys

difficulty

endo

within

erythro

red

hem

blood

hepat

liver

hyper

over/above

hypo

under/below

leuko

white

macro

large

micro

small

myo

muscle

myelo

spinal cord

neo

new

nephr

kidney

neuro

nervous system

opthalm

eye

osteo

bone

ot

ear

peri

around

poly

many

post

after

retro

behind

rhino

nose

sub

under

tachy

fast

tri

three

uni

one

venous

veins

semi

half