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A nurse is infusing an IV fluid at 40 mL/hr, and 376 mL of fluid remains in the bag. The current time is 19:30. What is the infusion time in hr and min?

9 hr and 15 min

9 hr and 24 min

9 hr and 30 min

9 hr and 40 min

Answer and Explanation

The Correct Answer is B

We can use the following formula to calculate the infusion time:

Infusion time (in hours) = Remaining volume (in mL) / Infusion rate (in mL/hr)

First, let's convert the current time to minutes since we will be calculating the infusion time in minutes as well:

19:30 = 19 hours x 60 minutes/hour + 30 minutes = 1170 minutes Now we can substitute the given values into the formula:

Infusion time (in hours) = 376 mL / 40 mL/hr Infusion time (in hours) = 9.4 hours

To convert this to hours and minutes, we can separate the integer and decimal parts of the answer:

9 hours (integer part) and 0.4 hours x 60 minutes/hour = 24 minutes (decimal part)

Therefore, the infusion time is 9 hours and 24 minutes, and the infusion will finish at approximately 04:54 (19:30 + 9 hours and 24 minutes).

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Correct Answer is D

Explanation

To calculate the volume to be administered, divide the ordered dose by the available concentration:

10 mg ÷ 5 mg/mL = 2 mL

The nurse should administer 2 mL of morphine sulfate 5 mg/mL to give a total dose of 10 mg.

A. 41.67 mL/hr B. 166.67 mL/hr C. 250 mL/hr D. 1000 mL/hr

Correct Answer is B

Explanation

To calculate the flow rate in mL/hr for a continuous infusion, we need to divide the total volume to be infused by the total time of infusion, and then convert the units as necessary.

In this case, the total volume is 2.5 L, which is equivalent to 2500 mL (1 L = 1000 mL), and the total time is 15 hours.

Flow rate = Total volume to be infused / Total time of infusion Flow rate = 2500 mL / 15 hours

Flow rate = 166.67 mL/hr

Therefore, the flow rate for continuous infusion of 0.9% sodium chloride solution in this case is 166.67 mL/hr.

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A nurse is infusing an IV fluid at 40 mL/hr, and 376 mL of fluid remains in the bag. The current time is 19:30. What is the infusion time in hr and min?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Morphine sulfate 10 mg IM is ordered. Morphine sulfate 5 mg/mL is available. What volume (mL) should be administered?

Correct Answer is D

Explanation

A physician gives the following order: "Infuse 0.9% sodium chloride solution, 2.5 L over 15 hours." What is the mL/hr flow rate for continuous infusion?

Correct Answer is B

Explanation

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