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Nitroglycerin 125 mg diluted in 500 mL D5W (dextrose 5% in water) is infusing at a rate of 42 mcg/minute for a patient with chest pain. What rate (in mL/hr) should the nurse program into the IV pump to deliver this dose?

Round your answer to the nearest tenth.

0.65 mL/hr

9.6 mL/hr

10.1 mL/hr

14.8 mL/hr

Answer and Explanation

The Correct Answer is C

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

Infusion rate (mL/hr) = (Dose ordered in mcg/min x Volume to be infused in mL) / Dose available in mg

First, we need to convert the dose ordered from mg/min to mcg/min: 125 mg = 125,000 mcg

125,000 mcg/500 mL = 250 mcg/mL

Now we can plug in the values we have into the formula:

Infusion rate (mL/hr) = (42 mcg/min x 60 min x 24 hours) / (250 mcg/mL) Infusion rate (mL/hr) = 10.08 mL/hr

Rounding to the nearest tenth, the answer is C. 10.1 mL/hr.

Therefore, the nurse should program the IV pump to deliver the nitroglycerin at a rate of 10.1 mL/hr to achieve the ordered dose of 42 mcg/minute.

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Correct Answer is D

Explanation

First, we need to calculate the total dose of esmolol required per minute: Total dose = Weight x Dose x 60 minutes

Total dose = 65 kg x 200 mcg/kg/min x 60 minutes Total dose = 780,000 mcg/min

Next, we need to convert the dose to milligrams (mg):

780,000 mcg/min = 780 mg/min

The concentration of the esmolol solution is 2,500 mg in 250 mL or 10 mg/mL. To deliver 780 mg/min at a concentration of 10 mg/mL, we need to infuse: Infusion rate = Total dose / Concentration

Infusion rate = 780 mg/min / 10 mg/mL Infusion rate = 78 mL/min

Rounding to the nearest whole number, the answer is D. 78 mL/hr.

Therefore, the nurse should calculate an infusion rate of 78 mL/hr to deliver the required dose of esmolol to the patient.

A. 1 tablet B. 2 tablets C. 3 tablets D. 4 tablets E. 4 tablets

Correct Answer is C

Explanation

The correct answer is choice C, 3 tablets. To calculate the number of tablets, divide the ordered dose by the available dose:

75 mg ÷ 25 mg = 3

The nurse should administer 3 tablets of Coumadin 25 mg to the patient to give a total dose of 75 mg.

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Nitroglycerin 125 mg diluted in 500 mL D5W (dextrose 5% in water) is infusing at a rate of 42 mcg/minute for a patient with chest pain. What rate (in mL/hr) should the nurse program into the IV pump to deliver this dose? Round your answer to the nearest tenth.

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Naxlex Comprehensive Predictor Exams

A nurse needs to infuse esmolol to a client weighing 65 kg. The dose on hand is 2,500 mg esmolol in 250 mL of fluid. The client requires a dose of 200 mcg/kg/min. Which rate should the nurse calculate to infuse this medication? Round to the nearest whole number.

Correct Answer is D

Explanation

Coumadin 75 mg is ordered for a patient with deep vein thrombosis. Coumadin 25 mg oral tablets are available in the electronic medication administration record. How many tablets should the nurse administer to the patient?

Correct Answer is C

Explanation

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Nitroglycerin 125 mg diluted in 500 mL D5W (dextrose 5% in water) is infusing at a rate of 42 mcg/minute for a patient with chest pain. What rate (in mL/hr) should the nurse program into the IV pump to deliver this dose?

Round your answer to the nearest tenth.