An administration set that delivers 15 gtt/mL is used to infuse 480 mL over 3.5 hours. What is the required drip rate in drops per minute?

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Multiple Choice

An administration set that delivers 15 gtt/mL is used to infuse 480 mL over 3.5 hours. What is the required drip rate in drops per minute?

Explanation:
The key idea is to convert the total volume into drops and then divide by the total infusion time in minutes to get drops per minute. Compute the total drops: 480 mL × 15 gtt/mL = 7200 drops. Convert time to minutes: 3.5 hours × 60 = 210 minutes. Drip rate = 7200 drops / 210 minutes ≈ 34.29 drops per minute, so round to the nearest whole drop: 34 gtt/min. Therefore, the required drip rate is about 34 gtt/min.

The key idea is to convert the total volume into drops and then divide by the total infusion time in minutes to get drops per minute.

Compute the total drops: 480 mL × 15 gtt/mL = 7200 drops.

Convert time to minutes: 3.5 hours × 60 = 210 minutes.

Drip rate = 7200 drops / 210 minutes ≈ 34.29 drops per minute, so round to the nearest whole drop: 34 gtt/min.

Therefore, the required drip rate is about 34 gtt/min.

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