The healthcare provider changes a prescription for nitroglycerin intravenous (IV) infusion from 5 mg/min to 10 mg/min. The IV bag contains nitroglycerin 50 mg in dextrose 5% in water (D5W) 250 mL. The nurse should program the infusion pump to deliver how many mL/h?
(Enter numerical value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["602"]
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (mg/min) x Volume (mL) / Concentration (mg)
Plugging in the given values, we get:
Infusion rate (mL/h) = 10 mg/min x 250 mL / 50 mg
Simplifying, we get:
Infusion rate (mL/h) = 500 mL / 50 min
Converting minutes to hours, we get:
Infusion rate (mL/h) = 500 mL / 0.83 h
Dividing both sides by 0.83, we get:
Infusion rate (mL/h) = 602.41 mL/h
Rounding to the nearest whole number, we get:
Infusion rate (mL/h) = 602 mL/h

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Naxlex Comprehensive Predictor Exams
Related Questions
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)
First, we need to convert the volume from liters to milliliters by multiplying by 1,000. In this case, 1 liter is equivalent to 1,000 mL.
To convert the time from hours to minutes, we need to multiply by 60. In this case, 12 hours is equivalent to 720 minutes.
Plugging in the given values, we get:
Infusion rate (gtt/min) = 1,000 mL x 60 gtt/mL / 720 min
Simplifying, 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
Correct Answer is ["24"]
Explanation
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (units/h) x Volume (mL) / Concentration (units)
First, we need to adjust the dose according to the sliding scale prescription based on the PTT result. In this case, since the PTT is less than 65 seconds, we need to increase the dose by 200 units/hour. Therefore, the new dose is 1,000 units/hour + 200 units/hour = 1,200 units/hour.
Plugging in the given values, we get:
Infusion rate (mL/h) = 1,200 units/h x 500 mL / 25,000 units
Simplifying, we get:
Infusion rate (mL/h) = 24 mL/h
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