A nurse is preparing to infuse a 250-mL unit of packed red blood cells (RBCs) over 2 hours.
The drop factor of the manual intravenous (IV) tubing is 15 drops/mL. How many drops per minute should the nurse adjust the flow rate to deliver?
The Correct Answer is ["31"]
Step 1: Calculate the total volume to be infused. Total volume = 250 mL.
Step 2: Calculate the total time for the infusion in minutes. Total time = 2 hours × 60 minutes/hour = 120 minutes.
Step 3: Calculate the flow rate in mL/min. Flow rate = Total volume ÷ Total time = 250 mL ÷ 120 min = 2.08 mL/min.
Step 4: Calculate the flow rate in drops/min. Flow rate = 2.08 mL/min × 15 drops/mL = 31.25 drops/min. So, the nurse should adjust the flow rate to deliver approximately 31 drops per minute.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
A black pressure ulcer indicates necrotic tissue, which often requires surgical debridement.
Choice B rationale
Increased drainage from the wound is not typically associated with a black pressure ulcer.
Choice C rationale
While documenting the wound status daily is part of wound care, it is not a specific event anticipated when planning care for a patient with a black pressure ulcer.
Choice D rationale
Increased monitoring of the wound condition is part of wound care, but it is not a specific event anticipated when planning care for a patient with a black pressure ulcer.
Correct Answer is C
Explanation
Choice A rationale
Full-thickness skin loss with visible bone is characteristic of a stage 4 pressure injury, not a stage 1 pressure injury.
Choice B rationale
Full-thickness skin loss with visible adipose tissue is characteristic of a stage 3 pressure injury, not a stage 1 pressure injury.
Choice C rationale
In a stage 1 pressure injury, the skin remains intact with localized erythema. The area may be painful, firm, soft, warmer, or cooler compared to adjacent tissue.
Choice D rationale
Partial-thickness skin loss with red tissue in the wound bed is characteristic of a stage 2 pressure injury, not a stage 1 pressure injury.
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