A physician orders 1 L of 0.9% NaCl to infuse over 8 hours via a drip set that delivers 20 drops/mL. What is the drip rate in drops/minute?

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Multiple choice — select the best answer

A20 gtts/min
B30 gtts/min
C42 gtts/min
D50 gtts/min

✓ Correct answer: C. 42 gtts/min Drip rate = (Volume in mL x Drop factor) / Time in minutes = (1000 x 20) / 480 = 20000 / 480 = 41.7 = 42 gtts/min.

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A physician orders 1 L of 0.9% NaCl to infuse over 8 hours via a drip set that delivers 20 drops/mL. What is the drip rate in drops/minute?

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