A client with deep vein thrombosis (DVT) is receiving a continuous intravenous (IV) infusion of heparin sodium 20,000 units in 5% dextrose injection, 500 mL. The infusion rate is 15 mL/hour. How many units of heparin should the client receive in 12 hours?
(Enter numerical value only.)
The Correct Answer is ["7200"]
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4.494"]
Explanation
To calculate the infusion rate, we need to use the same formula as in Text 1, but with a different volume of solution.
Plugging in the given values, we get:
Infusion rate (mL/h) = 2 mcg/min x 74.91 kg x 150 mL / 50,000 mcg
Simplifying, we get:
Infusion rate (mL/h) = 4.494 mL/h

Correct Answer is ["602"]
Explanation
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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