A patient is ordered to receive 500 mg of a medication intravenously over 4 hours via an infusion pump. The pharmacy supplies a 500 mg/100 ml solution. What is the infusion rate in mL/hr?

Identify the total volume and time Total Volume: 100 mL Infusion Time: 4 hours Calculate the infusion rate Infusion Rate (mL/hr) = Total Volume ÷ Time Infusion Rate = 100 ÷ 4 = 25 mL/hr