Physician Orders Cardizem to infuse at 10 mg/hr. Available is 125 mg in 100 ml DSW. What is the rate in ml/hr?

Calculation: Identify the prescribed dose and available concentration Ordered Dose: 10 mg/hr Available: 125 mg in 100 mL Calculate the concentration in mg/mL Concentration = 125 ÷ 100 = 1.25 mg/mL Calculate the infusion rate Infusion Rate = Ordered Dose ÷ Concentration Infusion Rate = 10 ÷ 1.25 = 8 mL/hr