Hesi Medical Dosage Calculation Proctored Exam
Calculation
The healthcare provider prescribes heparin 1,400 units/hour intravenously (IV). The IV bag contains heparin 20,000 units in 250 mL dextrose 5% in water. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
mL/hr
Explanation & Rationale
First, calculate the concentration of heparin in the IV bag by dividing the amount of heparin by the volume of fluid: 20,000 / 250 = 80 units/mL Next, divide the prescribed dose by the concentration of heparin: 1,400 / 80 = 17.5 mL/hour The answer is 18 mL/hour (rounded to the nearest whole number).
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