A nurse is preparing to administer vancomycin 1 g in 250 mL 0.9% sodium chloride by intermittent IV bolus over 90 min. 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.)

Calculation: Determine the total volume to be infused: Total volume: 250 mL Determine the total infusion time in hours: Infusion time: 90 minutes Conversion: 90 minutes / 60 minutes/hour = 1.5 hours Calculate the IV pump flow rate in mL/hr: Formula: Flow rate (mL/hr) = Total volume (mL) / Total time (hours) = 250 mL / 1.5 hours ≈ 166.67 mL/hr Round the answer to the nearest whole number: 166.67 mL/hr rounded to the nearest whole number is 167 mL/hr.