The healthcare provider prescribes an IV solution of regular insulin 100 units in 250 mL of 0.45% saline to infuse at 12 units/hour. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only.)

Calculation: Determine the concentration of insulin in the IV solution in units/mL: Total units of insulin = 100 units Total volume of solution = 250 mL Concentration = Total units / Total volume = 100 units / 250 mL = 0.4 units/mL Identify the prescribed infusion rate in units per hour: = 12 units/hour Calculate the infusion rate in mL per hour: Infusion rate (mL/hour) = Prescribed rate (units/hour) / Concentration (units/mL) = 12 units/hour / 0.4 units/mL = 30 mL/hour