1/10/14

Common Medication Formulas


Common Medication Formulas
Injections:
(Amount to be drawn
up into a syringe)
(Desired amount of drug X total volume)
________________________________

Total amount of drug on hand
Volume/hr (mL/hr):
(e.g., 150 mL/hr)
(Volume X drip set factor)
__________________________
Time in minutes
mg/min:
(e.g., 4 mg/min)
mg/hr:
(e.g., 20 mg/hr)
(Desired amount _ volume _ drip
set factor)
_______________________________
Amount of drug on hand
_______________________________
Total infusion time in minutes
To figure the rate
of an existing IV
1. Count drops per minute and multiply
by 60.
2. Divide result by the drip factor being
used.

IV Fluid Drip Rate Table (drops/min)
Rate: mL/
hr
TKO
50
75
100
125
150
175
200
250
10 gtt/
mL set
5
8
13
17
21
25
29
33
42
12 gtt/
mL set
6
10
15
20
25
30
35
40
50
15 gtt/
mL set
8
13
19
25
31
37
44
50
62
20 gtt/
mL set
10
17
25
33
42
50
58
67
82
60 gtt/
mL set
30
50
75
100
125
150
175
200
250
Note: TKO is 30 mL/hr.


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