The TPN bag is 1000 mL and runs at 60 mL per hour. Approximately how many hours will it take before a new bag is needed?

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Multiple Choice

The TPN bag is 1000 mL and runs at 60 mL per hour. Approximately how many hours will it take before a new bag is needed?

Explanation:
Time to deplete a bag equals the total volume divided by the infusion rate. With a 1000 mL bag at 60 mL per hour, the time to finish is 1000 ÷ 60 = 16.666... hours, about 16.7 hours. In practice, you’d plan to change the bag around the nearest hour, so roughly 17 hours. A 16-hour time would leave leftover fluid (about 40 mL), and 18 hours would require more than the bag contains (1080 mL). So the best approximate answer is 17 hours.

Time to deplete a bag equals the total volume divided by the infusion rate. With a 1000 mL bag at 60 mL per hour, the time to finish is 1000 ÷ 60 = 16.666... hours, about 16.7 hours. In practice, you’d plan to change the bag around the nearest hour, so roughly 17 hours. A 16-hour time would leave leftover fluid (about 40 mL), and 18 hours would require more than the bag contains (1080 mL). So the best approximate answer is 17 hours.

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