RN HESI Pharmacology Exam 3 | Nurselytic

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RN HESI Pharmacology Exam 3 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.)

Correct Answer: 37.5

Rationale: Convert 4 grams to 4000 mg. Infusion rate = (300 mg/hr) ÷ (4000 mg/500 mL) = 300 × 500 ÷ 4000 = 37.5 mL/hr. The pump should be set to 37.5 mL/hr.

Question 2 of 5

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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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