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    Hesi rn dosage calculations proctored exam
    Calculation

    A continuous infusion of heparin 10 unit/kg/hour is prescribed for a client with deep vein thrombosis (DVT) who weighs 165 pounds. The IV bag is labeled Heparin Sodium 25,000 Units in 5% Dextrose Injection 500 mL The nurse should program the Infusion pump to deliver how many mL/hour? (Enter numeric value only.)

    mL/hr

    Explanation & Rationale

    Given: Ordered infusion rate: 10 units/kg/hour Patient weight: 165 pounds Concentration of Heparin: 25,000 units in 500 mL (50 units/mL) Step 1: Convert patient weight from pounds to kilograms: 1 pound (lb) = 0.453592 kilograms (kg) Patient weight in kg = 165 lbs x 0.453592 kg/lb = 74.8 kg Step 2: Calculate the total dose of Heparin in units/hour: Total dose (units/hour) = Ordered dose (units/kg/hour) x Patient weight (kg) Total dose (units/hour) = 10 units/kg/hour x 74.8 kg Total dose (units/hour) = 748 units/hour Step 3: Calculate the infusion rate in mL/hour: Infusion rate (mL/hour) = Total dose (units/hour) / Concentration (units/mL) Infusion rate (mL/hour) = 748 units/hour / 50 units/mL Infusion rate (mL/hour) = 14.96 mL/hour Step 4: Round to the nearest whole number: Infusion rate (mL/hour) ≈ 15 mL/hour

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