A 1000 mL IV bag is to be infused over 12 hours. What is the rate in mL/hr?

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Study for the Archer Pharmacology Test to master dosage calculations and medication administration. Use flashcards and multiple choice questions with detailed explanations. Get ready for your exam!

Multiple Choice

A 1000 mL IV bag is to be infused over 12 hours. What is the rate in mL/hr?

Explanation:
You determine the rate by dividing the total volume by the total time. A 1000 mL bag over 12 hours gives 1000 ÷ 12 = 83.33 mL per hour. Rounding to the nearest whole mL per hour yields 83 mL/hr, which matches the given option. If you used 100 mL/hr, it would finish in about 10 hours; 72 mL/hr would take about 13.9 hours; 81 mL/hr would take about 12.35 hours—slightly longer or shorter than 12 hours.

You determine the rate by dividing the total volume by the total time. A 1000 mL bag over 12 hours gives 1000 ÷ 12 = 83.33 mL per hour. Rounding to the nearest whole mL per hour yields 83 mL/hr, which matches the given option. If you used 100 mL/hr, it would finish in about 10 hours; 72 mL/hr would take about 13.9 hours; 81 mL/hr would take about 12.35 hours—slightly longer or shorter than 12 hours.

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