1
Q
a
A
before
2
Q
ac
A
before meals
3
Q
ad lib
A
as desired
4
Q
aq
A
water
5
Q
bid
A
twice a day
6
Q
c [bar]
A
with
7
Q
cap
A
capsule
8
Q
cc*
A
cubic centimeter
*(recommended dc)
9
Q
cm
A
centimeter
10
Q
DC, disc, dc
A
discontinue
11
Q
EC
A
enteric-coated
12
Q
fl, fld
A
fluid
13
Q
gr
A
grain
14
Q
g, G, Gm
A
gram
15
Q
gtt
A
drop
16
Q
h, hr
A
hour
17
Q
hs, HS*
A
at bedtime, at hour of sleep
*(recommended dc)
18
Q
IM
A
intramuscularly
19
Q
IU*
A
International Unit
*(recommended dc)
20
Q
IVPB
A
intravenous piggyback
21
Q
kg, Kg
A
kilogram
22
Q
L
A
liter
23
Q
mEq
A
milliequivalent
24
Q
μg*, mcg
A
microgram
*(recommended dc μg)
25
mg
milligram
26
ml, mL
milliliter
27
mm
millimeter
28
NaCl
sodium chloride
29
noc, noct, n
night
30
NPO, npo
nothing by mouth
| nil per os
31
OD*
```
right eye (oculus dexter) / overdose
*(recommended dc)
```
32
OS*
```
left eye (oculus sinister)
*(recommended dc)
```
33
os
mouth
34
OTC
over the counter
35
OU*
```
both eyes (oculus uterque)
*(recommended dc)
```
36
oz
ounce
37
pc
after meals
38
PM, pm
afternoon
39
Po, PO
by mouth, orally (per os)
40
PRN, prn
whenever necessary (pro re nata)
41
qd*
every day
| *(recommended dc)
42
qh
every hour
43
q2h
every 2 hours
44
q3h
every 3 hours
45
qid
four times a day
46
QNS
quantity not sufficient
47
qod*
every other day
| *(recommended dc)
48
qs
quantity sufficient
49
R
rectal
50
Rx
prescription
51
SC, subcu, subq
subcutaneously
52
SL
sublingual
53
sol
solution
54
SR
sustained release
55
stat
immediately
56
supp
suppository
57
syr
syrup
58
T
temperature
59
tab
tablet
60
Tbsp, T, Tbs
tablespoon
61
tid
three times a day
62
tinct, tr
tincture
63
TO
telephone order
64
TPR
temperature, pulse, respiration
65
Tsp, t, tsp
teaspoon
66
U*
unit
| *(recommended dc)
67
ung
ointment
68
vag
vaginal
69
VO
verbal orders
