IM
intramuscular
IO
intraosseus
IV
intravenous
SQ
subcutaneous
NPO
nothing by mouth
PR
per rectum
SL
sublingual
PICC line
Percutaneous IV central catheter line
Rx
prescription
BID
twice daily
PC
after meals
PRN
as needed
PO
by mouth
Q
every
QH
every hours
TID
three times daily
QID
four times daily
QHS
at bedtime
gtt(s)
drops
UTD
up to date (as in immunizations)
NS
normal saline
Abx
antibiotics
NKDA
No known drug allergies
LR
lactated ringers