Dosage Calc Formulas Flashcards
1
Q
q.d.
A
Daily
q = Every…(quisque)
d = Day……(diem)
2
Q
q.o.d.
A
Every Other Day
3
Q
q.h.
A
Every Hour
4
Q
q.2.h / q.3.h / q.4.h
A
Every 2/3/4 Hours
5
Q
b.i.d.
A
Twice a day
b.i. = bi
6
Q
t.i.d.
A
Three times a day
7
Q
q.i.d.
A
Four times a day
8
Q
q.am
A
Every morning
9
Q
h.s.
A
At bedtime
“Hour of Sleep”
10
Q
q.h.s.
A
Every night
11
Q
a.c.
A
Before Meals
a = before (ante)
c = meals (cibum)
12
Q
p.c.
A
After Meals
p = post
c = cibum
13
Q
As Desired
A
as lib
14
Q
PRN
A
When Necessary
Pro Re Nata
15
Q
q.s.
A
As much as required
q = quantity
s = sufficient
