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?
125 mL/hr.
130 mL/hr.
135 mL/hr.
140 mL/hr.
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The nurse should administer 2 tablets of lorazepam 1 mg to give a total dose of 2 mg.
This is calculated by dividing the desired dose (2 mg) by the available dose (1 mg/tablet) to get the number of tablets needed: 2 mg / (1 mg/tablet) = 2 tablets.
Choice A, 1 tablet, is not the correct answer because it would only provide a total dose of 1 mg.
Choice C, 3 tablets, is not the correct answer because it would provide a total dose of 3 mg.
Choice D, 4 tablets, is not the correct answer because it would provide a total dose of 4 mg.
Correct Answer is B
Explanation
NPH insulin has an onset of action of about 1 to 2 hours, peaks in 4 to 12 hours, and lasts up to 24 hours. Given the administration at 0700, the onset of action would typically occur between 0800 and 0900. Hypoglycemia is most likely to occur during the onset or peak periods due to the insulin's glucose-lowering effect.
Among the options:
- A. 0715: Too early, as NPH insulin's onset is not within 15 minutes.
- B. 0800: Within the onset window (1 hour after administration), making it a plausible time to observe for hypoglycemia.
- C. 0900: Also within the onset window (2 hours after administration), another reasonable time to monitor.
- D. 1000: Slightly beyond the typical onset but still early in the action profile, where hypoglycemia could occur if glucose levels drop.
Since the question asks for the time to observe for hypoglycemia caused by the onset, the earliest time within the onset window is most appropriate. Thus, B. 0800 is the best answer, as it aligns with the start of NPH insulin’s onset period.
Final Answer: B. 0800
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