A physician orders 1,000 mL of 0.9% Normal Saline to be infused intravenously over 8 hours. The infusion set delivers 15 drops per mL (gtt/mL). What is the correct flow rate in drops per minute (gtt/min)?
Answer and explanation
Correct answer: A. 31 gtt/min
- Step 1: Calculate total infusion time in minutes: .
- Step 2: Apply the standard IV drip formula: .
Answer
31 gtt/min.
Why not the others: '25 gtt/min' incorrectly calculates with a 10-hour duration; '42 gtt/min' uses a 20 gtt/mL drop factor; '18 gtt/min' divides total volume by 60.
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