A client who weighs 176 pounds receives a prescription for dobutamine 2 mcg/kg/min intravenously (IV). The IV bag contains dobutamine 500 mg in dextrose 5% in water (D5W) 500 mL. How many mL/hour should the nurse program the IV infusion pump?
(Enter numerical value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["16"]
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, 176 pounds is equivalent to 79.904 kg.
Plugging in the given values, we get:
Infusion rate (mL/h) = 2 mcg/min x 79.904 kg x 500 mL / 500000 mcg
Simplifying, we get:
Infusion rate (mL/h) = 15.981 mL/h
Rounding to the nearest whole number, we get:
Infusion rate (mL/h) = 16 mL/h
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["7200"]
Explanation
To calculate the amount of heparin received, we need to use the formula:
Amount (units) = Infusion rate (mL/h) x Time (h) x Concentration (units/mL)
First, we need to calculate the concentration of heparin in the solution by dividing the total units by the total volume. In this case, it is 20,000 units / 500 mL.
Plugging in the given values, we get:
Amount (units) = 15 mL/h x 12 h x 20,000 units / 500 mL
Simplifying, we get:
Amount (units) = 7,200 units
Correct Answer is ["83"]
Explanation
To calculate the infusion rate, we need to use the formula:
Infusion rate (gtt/min) = Volume (mL) x Drop factor (gtt/mL) / Time (min)
Plugging in the given values, we get:
Infusion rate (gtt/min) = 500 mL x 20 gtt/mL / 120 min
Simplifying, we get:
Infusion rate (gtt/min) = 10000 gtt / 120 min
Dividing both sides by 120, we get:
Infusion rate (gtt/min) = 83.33 gtt/min
Rounding to the nearest whole number, we get:
Infusion rate (gtt/min) = 83 gtt/min
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