A nurse will administer Nubain (nalbuphine) 0.3 mg/kg IV over 10 minutes. The Nubain is available in 10 mg/mL. The patient weighs 148 lb.
How many milliliters per minute of Nubain should the nurse administer?
0.2 mL/min
0.4 mL/min
1 mL/min
2 mL/min
2 mL/min
The Correct Answer is A
The patient is ordered to receive 0.3 mg/kg of Nubain IV over 10 minutes. The patient weighs 148 lb, which is equivalent to 67.3 kg. To calculate the total amount of Nubain the patient should receive, multiply the weight by the dosage:
67.3 kg x 0.3 mg/kg = 20.19 mg
The Nubain is available in 10 mg/mL, which means there is 10 mg of Nubain in 1 mL of solution. To calculate how many milliliters of Nubain the patient should receive, divide the total amount of Nubain by the concentration:
20.19 mg / 10 mg per mL = 2.019 mL
To calculate how many milliliters per minute the nurse should administer, divide the total volume of Nubain by the infusion time:
2.019 mL / 10 minutes = 0.2019 mL per minute
Rounding to one decimal place, the nurse should administer 0.2 mL of Nubain per minute to the patient.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
No explanation
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.
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