A heparin drip is ordered at 1200 units/hr. The IV bag contains 25,000 units in 500 mL. What is the infusion rate in mL/hr?

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Multiple choice — select the best answer

A18 mL/hr
B24 mL/hr
C20 mL/hr
D30 mL/hr

✓ Correct answer: B. 24 mL/hr Using ratio-proportion: 25,000 units : 500 mL = 1200 units : X mL. Cross multiply: 25,000X = 600,000. X = 600,000 / 25,000 = 24 mL/hr.

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A heparin drip is ordered at 1200 units/hr. The IV bag contains 25,000 units in 500 mL. What is the infusion rate in mL/hr?

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