Rn Hesi Dosage Calculations
Rn Hesi Dosage Calculations ( 32 Questions)
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Question 21 :
Dobutamine hydrochloride 2 mcg/kg/min is prescribed for a client weighing 165 pounds. The solution is mixed with 50 mg of dobutamine in 1,000 mL of D5W. The nurse should set the infusion pump to deliver how many mL/hour? (Enter numerical value only.)
Correct Answer: ["29.964 mL\/h"]
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (mcg/min) x Weight (kg) x Volume (mL) / Concentration (mcg)
First, we need to convert the weight from pounds to kilograms by multiplying by 0.454. In this case, 165 pounds is equivalent to 74.91 kg.
Plugging in the given values, we get:
Infusion rate (mL/h) = 2 mcg/min x 74.91 kg x 1,000 mL / 50,000 mcg
Simplifying, we get:
Infusion rate (mL/h) = 29.964 mL/h