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NCLEX RN Dosage Calculation Questions Questions

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Question 1 of 5

The primary healthcare provider (PHCP) prescribes dopamine at 2.5 mcg/kg/minute. The client weighs 90 kg (198 lbs). The medication label reads dopamine 800 mg in 500 mL of dextrose 5% water (D5W). How many mL per hour will be administered to the client? Fill in the blank. Round your answer to the nearest whole number.

Correct Answer: 8 mL/hr

Rationale: Calculate dose: 2.5 mcg/kg/min × 90 kg = 225 mcg/min. Convert: 800 mg = 800,000 mcg, so 800,000 mcg/500 mL = 1600 mcg/mL. Flow rate: (225 mcg/min ÷ 1600 mcg/mL) × 60 min/hr = 8.44 mL/hr, rounded to 8 mL/hr.

Question 2 of 5

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Question 3 of 5

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