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.)
The Correct Answer is ["18"]
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).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
Desired dosage: 7.5 mg/mL
Available concentration: 5 mg/mL
Calculate the volume needed:
Volume = Desired dosage / Concentration
Volume = 7.5 mg / 5 mg/mL
Volume = 1.5 mL
The nurse should administer 1.5 mL.
Correct Answer is ["21"]
Explanation
-
Determine the infusion rate in mL per hour:
- Total volume = 250 mL
- Total time = 2 hours
- Infusion rate = 250 mL ÷ 2 hours = 125 mL/hour
-
Use the drop factor to calculate gtt/min:
- Drop factor = 10 gtt/mL
- Formula: gtt/min = (mL per hour × drop factor) ÷ 60
- Calculation: (125 × 10) ÷ 60 = 20.83 gtt/min
-
Round to the nearest whole number:
- Final answer = 21 gtt/min
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