A 250 mL piggyback is to infuse over 4 hours. What is the rate in mL/hr?

Prepare for your Infusion Calculations Test. Study with flashcards and multiple-choice questions, each question comes with hints and explanations. Ready yourself for success!

Multiple Choice

A 250 mL piggyback is to infuse over 4 hours. What is the rate in mL/hr?

Explanation:
Infusion rate is the volume divided by the time. So for 250 mL to be infused over 4 hours, divide 250 by 4: 250 ÷ 4 = 62.5. The rate is 62.5 mL per hour, which is the correct value. Think of what each alternative would imply: 125 mL/hr would finish 250 mL in 2 hours, not 4; 31.25 mL/hr would take 8 hours; 75 mL/hr would finish in about 3 hours and 20 minutes. The 62.5 mL/hr result matches the given volume and time.

Infusion rate is the volume divided by the time. So for 250 mL to be infused over 4 hours, divide 250 by 4: 250 ÷ 4 = 62.5. The rate is 62.5 mL per hour, which is the correct value.

Think of what each alternative would imply: 125 mL/hr would finish 250 mL in 2 hours, not 4; 31.25 mL/hr would take 8 hours; 75 mL/hr would finish in about 3 hours and 20 minutes. The 62.5 mL/hr result matches the given volume and time.

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