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?

Answer and Explanation

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.

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Correct Answer is D

Explanation

Choice A rationale

Measuring the bladder before the patient voids would not provide an accurate measurement of postvoid residual, which is the amount of urine left in the bladder after voiding.

Choice B rationale

The position of the head of the bed does not directly impact the measurement of postvoid residual. However, the patient should be in a comfortable position during the procedure.

Choice C rationale

Similar to Choice B, the position of the head of the bed does not directly impact the measurement of postvoid residual.

Choice D rationale

Measuring the bladder within 15 minutes after the patient voids allows for an accurate measurement of postvoid residual, which can help assess bladder function.

A. Fill the balloon with the recommended sterile water. B. Remove the catheter, wipe with alcohol, and reinsert after lubrication. C. Leave the catheter in the vagina as a landmark for insertion of a new, sterile catheter. D. Discard the catheter and begin again.

Correct Answer is C

Explanation

If the nurse suspects the catheter is not in the urethra, they should leave the catheter in the vagina as a landmark for insertion of a new, sterile catheter.

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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?

Nursing Test Bank

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Correct Answer is D

Explanation

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Correct Answer is C

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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?