RN HESI Pharmacology | Nurselytic

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RN HESI Pharmacology Questions

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Question 1 of 5

The healthcare provider prescribes magnesium sulfate 300 mg/hour IV. The IV bag contains magnesium sulfate 4 grams in dextrose 5% in water (D5W) 500 mL. How many mL/hour should the nurse set the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest tenth.) How many mL/hour should the nurse set the infusion pump?

Correct Answer: 37.5

Rationale: 4 grams = 4000 mg; concentration = 4000 mg ÷ 500 mL = 8 mg/mL; infusion rate = 300 mg/hour ÷ 8 mg/mL = 37.5 mL/hour.

Question 2 of 5

Correct Answer:

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Question 3 of 5

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Question 4 of 5

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Question 5 of 5

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