A nurse is preparing to administer verapamil 0.1 mg/kg via intermittent IV bolus over 2 min. Available is verapamil 2.5 mg/mL. The client weighs 165 Ib. How many mL should the nurse administer?

Step 1 is: Convert client weight from pounds to kilograms. 165 Ib ÷ 2.2 Ib/kg = 75 kg. Step 2 is: Calculate the total dose of verapamil needed. 0.1 mg/kg × 75 kg = 7.5 mg. Step 3 is: Calculate the volume to administer in mL. 7.5 mg ÷ (2.5 mg/mL) = 3 mL. The nurse should administer 3 mL.