ac (AC)
Before meals
achs (ACHS)
Before meals and before bedtime
pc (PC)
After meals
pc (PC)
After meals
bid (BID)
Twice a day
tid (TID)
Three times a day
qid (QID)
4 times a day
qh
Every hour
qn (QN)
Every night
stat (STAT)
Immediately
q2h (Q2H
Every 2 hours
q6h (Q6H)
Every 6 hours
q8h (Q8H)
Every 8 hours
q12h (Q12h)
Every 12 hours
prn (PRN)
As needed
at bedtime (AT BEDTIME)
At bedtime
Every other day
Every other day
HHN
Hand-held nebulizer
IM
Intramuscular
IV
Intravenous
IVP
Intravenous Push
IVPB
Intravenous piggyback/rider
MDI
Metered-dose inhaler
NEB
Nebulizer