Keflex 1.5 g in 50 mL of a 5% Dextrose solution should be administered in 30 minutes. The IV tubing delivers 15 gtt/mL. What is the rate in gtt/min, rounded to the nearest whole number?

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Multiple Choice

Keflex 1.5 g in 50 mL of a 5% Dextrose solution should be administered in 30 minutes. The IV tubing delivers 15 gtt/mL. What is the rate in gtt/min, rounded to the nearest whole number?

Explanation:
This question tests converting a prescribed infusion into drops per minute using the tubing’s drop factor. To get the drip rate, you first determine how many milliliters flow each minute: total volume divided by total time equals 50 mL / 30 min = 1.666... mL per minute. Next, convert that to drops per minute by multiplying by the drop factor: 1.666... mL/min × 15 gtt/mL = 25 gtt/min. Since this comes out to a whole number, no rounding is needed. The drug amount and the solution concentration don’t affect the drip rate calculation; they matter for dose, not the rate here.

This question tests converting a prescribed infusion into drops per minute using the tubing’s drop factor. To get the drip rate, you first determine how many milliliters flow each minute: total volume divided by total time equals 50 mL / 30 min = 1.666... mL per minute. Next, convert that to drops per minute by multiplying by the drop factor: 1.666... mL/min × 15 gtt/mL = 25 gtt/min. Since this comes out to a whole number, no rounding is needed. The drug amount and the solution concentration don’t affect the drip rate calculation; they matter for dose, not the rate here.

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