AAA
Apply to affected area
AC
Ante cibos/ Before meals
AD**
Auro dextro/ Right ear
AM
Ante meridien/ Morning
AS**
Auro sinister/ Left ear
ATC
Around the clock
AU**
Auro ultro/ Both ears
BID
Bis in die/ Twice a day
BIW**
Twice a week
BM
Bowel movement
BP
Blood pressure
DC**
Discontinue
GI
Gastrointestinal
GTT
Guttae/ Drops
H
Hora /Hour
HA
Headache
HS
Hora somni/ At bedtime, at hour of sleep
HTN
Hypertension
IM
Intramuscular
IV
Intravenous
MR
May repeat
N&V
Nausea & Vomiting
OD
Oculo dextro/ Right eye
OS
Oculo sinistro/ Left eye
OU
Oculo ultro/ Both eyes
PC
Post cibos/ After meals
PM
Post meridien/ Evening
PO**
Per os/ By mouth, orally
PR
Rectally
PRN
Pro re nata/ As needed
PV
Vaginally
QD**
Quaque die/ Every day
QW**
Every week
QID**
Quarter in die/ Four times a day
QOD**
Every other day
QOW**
Every other week
Sig
Signa/ Write
Stat
Statim/ Immediately
TID**
Ter in die/ Three times a day
TIW**
Three times a week
UD
Ut dictum/ As directed
UTI
Urinary tract infection