An IV bag contains 250 mL and is running at 50 mL per hour. How long will the infusion take to complete?
Correct answer: C. 5 hours
- A. 2 hours
- B. 4 hours
- C. 5 hours
- D. 10 hours
Explanation
Use: total volume divided by infusion rate. 250 mL ÷ 50 mL/hour = 5 hours. The infusion time is found by dividing volume by rate, not by multiplying them.
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About Drug Calculations and Dosage
Drug calculations apply measurement systems, unit conversions, dosage formulas, tablet and liquid doses, percentage and ratio strength, and weight based dosing. Work also includes calculating IV flow rates, infusion times and doses for children, while distinguishing the prescribed dose from the available concentration.
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