IM

intramuscular

IV

intravenous

IVPB

intravenous piggyback

IVP

intravenous push

subcut or subq

subcutaneous

SL

sublingual, under the tongue

ID

intradermal

GT

gastrostomy tube

NG

nasogastric tube

NJ

nasojejunal tube

p.o.

by mouth, orally

p.r.

per rectum, rectally

a.c.

before meals

p.c.

after meals

ad. lib.

as desired, freely

p.r.n.

when necessary

stat

immediately, at once

b.i.d.

twice a day

t.i.d.

three times a day

q.i.d.

four times a day

min

minute

h

hour

q h

every hour

q 2h, q 3h, q 4h, etc.

every two hours, 3 hours,

4 hours, etc.

ā

before

_

p

after

_

c

with

_

s

without

q

every

qs

quantity sufficient

aq

water

NPO

nothing by mouth

gtt

drop

tab

tablet

cap

capsule

et

and

noct

night