A physician orders 500 mL of lactated Ringer's solution to infuse over 4 hours. What is the correct infusion rate in mL/hr?

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Multiple choice — select the best answer

A100 mL/hr
B150 mL/hr
C200 mL/hr
D125 mL/hr

✓ Correct answer: D. 125 mL/hr To calculate mL/hr, divide the total volume by the time in hours: 500 mL divided by 4 hours = 125 mL/hr.

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A physician orders 500 mL of lactated Ringer's solution to infuse over 4 hours. What is the correct infusion rate in mL/hr?

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