Nurs 4th Sem Mce A-fall 2025 Dosage Calculation Proctored Exam (Montgomery College)
Calculation
A client weighing 50 kg is to receive a dobutamine infusion at 3 mcg/kg/min. The available medication is 250 mg of dobutamine in 500 mL DSW. How many ml/hr will the nurse program the pump? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
mL/hr
Explanation & Rationale
Rationale: Step 1: Calculate dose in mcg/min: 3 mcg/kg/min × 50 kg = 150 mcg/min Step 2: Convert infusion solution to mcg/mL: 250 mg = 250,000 mcg in 500 mL → 250,000 ÷ 500 = 500 mcg/mL Step 3: Calculate mL/min: 150 mcg/min ÷ 500 mcg/mL = 0.3 mL/min Step 4: Convert to mL/hr: 0.3 mL/min × 60 min/hr = 18 mL/hr Final Answer: 18 mL/hr
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