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A nurse is preparing to administer Ringer lactate 500 mL intravenous (IV) bolus to infuse over 3 hours. The drop factor of the manual IV tubing is 2 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Answer and Explanation

The Correct Answer is ["56"]

To calculate the infusion rate, we'll use the following formula:

Infusion rate (gtt/min) = (Volume to be infused (mL) / Time (min))  Drop factor (gtt/mL)

First, calculate the total time in minutes:

  • 3 hours  60 minutes/hour = 180 minutes

Then, calculate the volume per minute:

  • 500 mL / 180 minutes = 2.78 mL/min

Finally, multiply the volume per minute by the drop factor:

  • 2.78 mL/min  20 gtt/mL = 55.6 gtt/min

Therefore, the nurse should set the manual IV infusion to deliver 56 gtt/min.


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Related Questions

Correct Answer is C

Explanation

A. Massage the legs: This is incorrect. Massage is contraindicated as it can cause further tissue damage and is not appropriate for frostbite.
B. Apply dry heat to the legs: This is incorrect. Dry heat can exacerbate tissue damage. Rewarming should be done using controlled, warm water immersion, not dry heat.
C. Elevate the legs: This is correct. Elevating the legs helps reduce swelling and can prevent further tissue damage. However, rewarming should be done carefully in a controlled environment.
D. Immerse the legs in cold water: This is incorrect. Immersing in cold water would worsen the frostbite. Rewarming should be done using warm (not hot) water, ideally at 37-39°C (98.6-102.2°F), for effective treatment.

Correct Answer is B

Explanation

A. Hormone therapy decreases the risk of cardiovascular events: This is incorrect. Hormone therapy has been associated with an increased risk of cardiovascular events, such as heart attacks and strokes, especially in older women or those with preexisting risk factors.
B. Hormone therapy may prevent osteoporotic fractures: This is correct. Hormone therapy can help maintain bone density and reduce the risk of osteoporotic fractures, which is beneficial after a total hysterectomy.
C. Hormone therapy should be taken in doses throughout the day: This is incorrect. Hormone therapy is typically taken in a single daily dose or according to a specific schedule, rather than multiple times throughout the day.
D. If a dose is missed, then the next dose should be doubled: This is incorrect. Missing a dose of hormone therapy should be addressed according to the specific medication instructions, and doubling the dose is not generally recommended.

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