The physician ordered 60 units of regular insulin in 100 mL of NS. It is to infuse at 15 units/hour per infusion pump. What is the correct IV rate in milliliters per hour? Round to the nearest whole number.
A) 18
B) 21
C) 25
D) 31

Question

Quizplus · Accepted Answer

When solving any problem, first check that the order and the supply are in the same weight measure. For this problem, no equivalent is necessary. Estimate the amount to give. Round to the nearest whole number. Formula Method: 15 units/hour/60 units *100 mL = 25 mL/hour. Proportion (Ratios): 100 mL : 60 units :: x mL : 15 units; 60x = 1500/60 = 25 mL/hour. Proportion (Fractions): 100 mL/60 units = x mL/15 units; 60x = 1500/60 = 25 mL/hour. Dimensional Analysis: 100 mL/60 units * 15 units/1 hour = 100 mL * 15/60 = 25 mL/hour.

The Physician Ordered 60 Units of Regular Insulin in 100