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.
5 mL/hr
6 mL/hr
13 mL/hr
78 mL/hr
The Correct Answer is D
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.
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Related Questions
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.
Correct Answer is B
Explanation
The correct answer is choice B. 31. To find the number of bottles required, use the formula: (dose x frequency x duration) / (bottle size x bottle concentration). In this case, (4 mg/kg x 43 kg x 3 times/day x 6 days) / (100 mg/bottle) = 30.96 bottles. Round up to the nearest whole number to get 31 bottles.
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