A nurse is preparing to administer nitroprusside 2 mcg/kg/min via continuous IV infusion to a client who weighs 75 kg. Available is nitroprusside 50 mg in dextrose 5% in water 250 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Calculate the total dose per minute: Dose: 2 mcg/kg/min Weight: 75 kg Total dose per minute = 2 mcg/kg/min × 75 kg = 150 mcg/min Convert mcg/min to mg/min: Conversion factor 1mg = 1000mcg 150 mcg/min / 1000 mcg/mg = 0.15 mg/min Calculate the concentration of the solution: Available: 50 mg in 250 mL Concentration: 50 mg / 250 mL = 0.2 mg/mL Calculate the infusion rate in mL/min: Infusion rate: 0.15 mg/min / 0.2 mg/mL = 0.75 mL/min Convert mL/min to mL/hr: Infusion rate: 0.75 mL/min × 60 min/hr = 45 mL/hr Therefore, the nurse should set the IV pump to deliver 45 mL/hr.