Which of the following best represents the rate for 400 mL over 8 hours with a drop factor of 20 gtt/mL?

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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

Which of the following best represents the rate for 400 mL over 8 hours with a drop factor of 20 gtt/mL?

Explanation:
Infusion rate calculations convert volume over time into drops per minute by using the drop factor to translate milliliters into drops. First turn the total time into minutes: 8 hours is 480 minutes. The volume rate in milliliters per minute is 400 mL / 480 min ≈ 0.833 mL/min. Now convert to drops per minute using the drop factor: 0.833 mL/min × 20 gtt/mL ≈ 16.7 gtt/min. Since you typically round to whole drops, this is about 17 gtt/min. So the rate is approximately 17 gtt/min.

Infusion rate calculations convert volume over time into drops per minute by using the drop factor to translate milliliters into drops.

First turn the total time into minutes: 8 hours is 480 minutes. The volume rate in milliliters per minute is 400 mL / 480 min ≈ 0.833 mL/min.

Now convert to drops per minute using the drop factor: 0.833 mL/min × 20 gtt/mL ≈ 16.7 gtt/min. Since you typically round to whole drops, this is about 17 gtt/min.

So the rate is approximately 17 gtt/min.

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