B) 4 mcg/kg/min
Patient is 78 kg. The ordered dose would have to be for 4 mcg/kg/min since:
78 kg x 4mcg/kg/min = 312 mcg/min.
312mcg/min x 60min/hr = 18720mcg/hr which equals mg= 18.72 mg/hr.
18.72 mg/hr x 250mL/400mg = 11.7 (12) mL/hr the running rate.
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