calculations for iv rates and medicatons pg 296

 calculating gtt/m
ampicillin 500 mg in 50 ml /ns run over 20 minutes drop factor is 15 ml/m

flow rate (gtts/min)
volume to be administered (ml) x drop factor of the tubing (drop/ml)
Lengh of time to be administered (minutes)

50 x 15 = 750 = 75 =    37.5  ggt/min - round up or down to whole number
20             20      2


erythromycin 50 mg in 100 ml NS
run over 30 min
gtt factor 15

100 x 15 =  1500 = 150= 50gtt/min
30                 30        3   


to calculate ml/hr

divide 60 minutes by the time to infuse the med, multiply the answer by the volume

60/20 = 3
3x50 = 150 cc/hr

16a
60/30=2
2x100=200ml/hr
16b
60/90=066
.66 x100 = 66ml/hr