The pharmacy sends a bag of 150 mLs of D5W/0.456 normal saline with 25 units of Regular Insulin.
The patient is ordered to receive an insulin drip at a rate of 9 units/hour.
What rate will you set the IV pump to deliver? Numeric values only.
The Correct Answer is ["20"]
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Calculate the total units of insulin in the IV bag:
- The bag contains 150 mL of solution.
- The concentration is 0.456 units/mL.
- Total insulin = 150 mL × 0.456 units/mL = 68.4 units.
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Determine how long the IV bag will last:
- The ordered rate is 9 units/hour.
- Total duration = 68.4 units ÷ 9 units/hour = 7.6 hours.
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Calculate the IV pump rate:
- The total volume of the bag is 150 mL.
- Pump rate = 150 mL ÷ 7.6 hours = 19.74 mL/hr.
- Rounded to the nearest whole number: 20 mL/hr.
So the nurse should set the IV pump to 20 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["mLs\/hr."]
Explanation
Answer and explanation
Step 1 is to calculate the total units of Heparin in 1 mL of the solution. This is done by dividing the total units of Heparin in the bag (40,000 units) by the total volume of the bag (500 mL). So, 40,000 units ÷ 500 mL = 80 units/mL. Step 2 is to calculate the rate at which the IV pump should be set. This is done by dividing the ordered amount of Heparin per hour (1600 units) by the units of Heparin per mL (80 units/mL). So, 1600 units/hr ÷ 80 units/mL = 20 mL/hr.
So, the correct answer is 20 mL/hr.
Correct Answer is A
Explanation
Choice A rationale:
The best contraceptive is indeed one that the couple will use correctly and consistently, as effectiveness largely depends on correct use.
Choice B rationale:
No contraceptive method is 100% effective, so this statement could give false assurance.
Choice C rationale:
While cost and convenience are important factors, they should not be the only considerations when choosing a contraceptive.
Choice D rationale:
Some effective contraceptives do require a prescription, so this statement could limit the couple’s options.
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