Dividing fractions
Keep
Change
Flip
Milligrams
mg
Liter
L
Grams
g
Milliliter
mL
Do not use
u
cc
Q1D, QD
AC, ac
before meals
PC, pc
after meals
HS, hs
at bedtime
Q day
1 time each day
BID
twice a day
TID
3 times a day
QID
4 times a day
prn
as needed
D/C
discontinued
PO
through mouth
IM
intramuscular
NPO
nothing by mouth
SQ
subcutaneous
IV
intravenous
IVPB
intravenous piggyback
IVP
intravenous push
TD
transdermal
BUCC
between gums and cheek