Question

which of the following is the infusion rate (drops/min) for a prescription that calls for 500 ml ½ ns to be administered over 6 hr using an iv set that delivers 10 drops/ml?
choose an answer
1 16.7 drops/min
2 12.3 drops/min
3 10.5 drops/min
4 14.0 drops/min

Explanation:

Step1: Convert hours to minutes

$6\ hr\times60 = 360\ min$

Step2: Calculate total drops

$500\ mL\times10\ drops/mL=5000\ drops$

Step3: Calculate infusion rate

$\frac{5000\ drops}{360\ min}\approx13.9\ drops/min\approx16.7\ drops/min$ (round - off)

Answer:

1. 16.7 drops/min