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A nurse is preparing to administer dextrose 3.5% in water (D3.5W) 1200 mL to infuse over 24 hours.

The drop factor of the manual IV infusion is 15 gtt/mL.

How many gtt/min should the nurse set the infusion to deliver? (Round to the nearest whole number.

Use a leading zero if it applies. Do not use a trailing zero.).

25 gtt/min.

13 gtt/min.

42 gtt/min.

15 gtt/min.

Answer and Explanation

The Correct Answer is B

Step 1: Calculate the total infusion time in minutes.

24 hours × (60 minutes/hour) = 1440 minutes.

Step 2: Calculate the infusion rate in mL/min.

1200 mL ÷ 1440 minutes = 0.833 mL/min.

Step 3: Calculate the drop rate in gtt/min.

0.833 mL/min × 15 gtt/mL = 12.495 gtt/min.

Step 4: Round to the nearest whole number.

12.495 ≈ 13 gtt/min.

Answer: 13 gtt/min.

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Correct Answer is A

Explanation

Insulin lispro is a fast-acting insulin that starts to work about 15 minutes after injection, peaks in about 1 hour, and keeps working for 2 to 4 hours1.
Therefore, it should be injected 15 minutes before a meal2.
Choice B is incorrect because polyuria (frequent urination) is a symptom of high blood sugar levels, not a direct result of insulin lispro injection.
Choice C is incorrect because checking the expiration date should be done before administering any medication, not after.
Choice D is incorrect because insulin lispro should be administered using a clean syringe and proper hygiene practices should be followed to prevent infection.

A. 125 mL/hr. B. 130 mL/hr. C. 135 mL/hr. D. 140 mL/hr.

Correct Answer is A

Explanation

To calculate the rate at which the volumetric pump should be set to deliver the intravenous fluids, you need to divide the total volume of fluid (3,000 mL) by the total time in hours (24 hours).
This gives you 3,000 mL ÷ 24 hours = 125 mL/hr.
Therefore, the nurse should set the volumetric pump to deliver 125 mL of fluid per hour.

Choice B is incorrect because 130 mL/hr would result in a total of 3,120 mL over 24 hours.
Choice C is incorrect because 135 mL/hr would result in a total of 3,240 mL over 24 hours.
Choice D is incorrect because 140 mL/hr would result in a total of 3,360 mL over 24 hours.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer insulin lispro to a client who has type 1 diabetes mellitus. Which of the following actions should the nurse plan to take?

Correct Answer is A

Explanation

A nurse is assisting with the care of a client who has a prescription for 3,000 mL of intravenous fluids over the next 24 hours. The nurse should set the volumetric pump to deliver how many milliliters per hour?

Correct Answer is A

Explanation

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