Free NCLEX RN Practice Test Practice Question
The nurse assesses a new order for a blood transfusion. The order is to transfuse 1 unit of packed red blood cells (contains 250 mL) in a 2-hour period. What will be the hourly rate of infusion?
Correct Answer: C
Rationale: To determine the hourly rate of infusion for 1 unit of packed red blood cells (250 mL) over 2 hours, divide the total volume by the time.
Calculating: 250 mL ÷ 2 hours = 125 mL/hr.
This shows that option C is accurate.
Option A (50 mL/hr) underestimates the rate, suggesting the blood would take 5 hours to transfuse, which is unsafe. Option B (62 mL/hr) also incorrectly calculates the rate, implying a longer duration. Option D (137 mL/hr) exceeds the safe transfusion speed, potentially leading to complications. Thus, 125 mL/hr ensures a safe and effective transfusion within the prescribed time.
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