An adolescent with meningococcal meningitis is receiving a continuous IV infusion of penicillin G, which is prescribed as 20 million units in a total volume of 2 liters of normal saline every 24 hours. The pharmacy delivers 10 million units/litre of normal saline. How many mL/hour should the nurse program the infusion pump? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Formula: Infusion rate (mL/hour) = Total volume (mL) / Total time (hours) Convert total volume from liters to milliliters: 1L = 1000mL 2L = 2 liters x 1000 mL/litre = 2000 mL Total volume = 2000 mL Total infusion time in hours: Total infusion time = 24 hours Calculate the infusion rate in mL/hour: Infusion rate (mL/hour) = Total volume (mL) / Total time (hours) = 2000 mL / 24 hours ≈ 83.33 mL/hour Round to the nearest whole number: Rounded infusion rate = 83 mL/hour