A client receives a prescription for heparin 320 units/hour. The available solution is labeled Heparin Sodium 20,000 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 ["8"]
Given:
Ordered infusion rate: 320 units/hour
Concentration of Heparin: 20,000 units in 500 mL (40 units/mL)
Formula:
Infusion rate (mL/hr) = Infusion rate (units/hr) / Concentration (units/mL)
Step 1: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = 320 units/hr / 40 units/mL
Infusion rate (mL/hr) = 8 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["180"]
Explanation
Given:
Ordered dose of Daptomycin: 9 mg/kg/day
Child's weight: 44 pounds
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 44 lbs x 0.453592 kg/lb = 19.958 kg
Step 2: Calculate the total daily dose of Daptomycin:
Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)
Total daily dose (mg) = 9 mg/kg/day x 19.958 kg
Total daily dose (mg) = 179.622 mg
Round off to 180 mg
Correct Answer is ["0.8"]
Explanation
Given:
Ordered dose of phenytoin: 20 mg
Concentration of phenytoin suspension: 125 mg/5 mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
20 mg / Volume = 125 mg/5 mL
Step 3: Solve for the unknown volume:
Volume = 20 mg / (125 mg/5 mL)
Volume = 20 mg x (5 mL / 125 mg)
Volume = 0.8 mL
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