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ac
Before meals
pc
After meals
Daily
Everyday/Daily
bid
Twice a day
tid
Three times a day
qid
Four times a day
qh
Every hour
At bedtime
At bedtime/hour of sleep
qn
Every night
stat
immediately
q2h
every 2 hours
q4h
every 4 hours
q6h
every 6 hours
q8h
every 8 hours
q12h
every 12 hours
Every other day
Interpreted by days of the month, do not use QOD
prn
As needed, combined with time abbreviations (ex: q4h prn)
3 times weekly
Days of the week, 3x weekly
biw
2x weekly, relates to days of the week
The ears
Write out which ones (ex: Right ear, left ear, both ears)
HHN
handheld nebulizer
IM
intramuscularly
IV
intravenously
IVP
intravenous push
IVPB
intravenous piggyback
MDI
metered-dose inhaler
NEB
nebulizer
NGT or NG
nasogastric tube
Each eyes
Write out each eye(s) (ex: Right eye, left eye, both eyes)
po or PO
by mouth
pr or PR
in rectum
SL
sublingual, under tongue
Sub q
must write out: subcutaneously
S&S
swish and swallow
Note 
Flashcard (33)