Infuse 500 mL over 4 hours with a microdrip set (60 gtt/mL). What is the rate in gtt/min?

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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

Infuse 500 mL over 4 hours with a microdrip set (60 gtt/mL). What is the rate in gtt/min?

Explanation:
To get drops per minute, use rate = (volume × drop factor) ÷ time in minutes. Here, 500 mL at 60 gtt/mL over 4 hours equals 240 minutes. So rate = (500 × 60) ÷ 240 = 30,000 ÷ 240 = 125 gtt/min. You can also see it as 500 mL/4 h = 125 mL/hour; 125 mL/hour × 60 gtt/mL = 7,500 gtt/hour; 7,500 ÷ 60 min = 125 gtt/min. Therefore, the rate is 125 gtt/min.

To get drops per minute, use rate = (volume × drop factor) ÷ time in minutes. Here, 500 mL at 60 gtt/mL over 4 hours equals 240 minutes. So rate = (500 × 60) ÷ 240 = 30,000 ÷ 240 = 125 gtt/min. You can also see it as 500 mL/4 h = 125 mL/hour; 125 mL/hour × 60 gtt/mL = 7,500 gtt/hour; 7,500 ÷ 60 min = 125 gtt/min. Therefore, the rate is 125 gtt/min.

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