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.)
The Correct Answer is ["15"]
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.5"]
Explanation
Given:
Ordered dose of interferon beta-1b: 0.125 mg
Vial strength: 0.3 mg
Reconstitution volume: 1.2 mL
Step 1: Determine the concentration of the reconstituted solution:
Concentration (mg/mL) = Total amount of medication (mg) / Volume of solution (mL)
Concentration (mg/mL) = 0.3 mg / 1.2 mL
Concentration (mg/mL) = 0.25 mg/mL
Step 2: Calculate the volume to be administered:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume (mL) = 0.125 mg / 0.25 mg/mL
Volume (mL) = 0.5 mL
Correct Answer is ["10"]
Explanation
Given:
Ordered dose of Dexamethasone: 0.6 mg/kg
Child's weight: 35 pounds
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 35 lbs x 0.453592 kg/lb = 15.87572 kg
Step 2: Calculate the total dose of Dexamethasone:
Total dose (mg) = Ordered dose (mg/kg) x Child's weight (kg)
Total dose (mg) = 0.6 mg/kg x 15.87572 kg
Total dose (mg) = 9.525432 mg
Step 3: Round to the nearest whole number:
Total dose (mg) ≈ 10 mg
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