A nurse is preparing to administer calcitonin 8 units/kg IM to a client who weighs 165 lb. Available is 200 units/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use leading zero if it applies. Do not use a trailing zero.)

Convert the client's weight from pounds to kilograms: There are 2.205 pounds in 1 kilogram. 165 lb = 165 lb / 2.205 lb/kg = 75 kg. Determine the total dosage: The client is prescribed 8 units/kg of calcitonin. The client weighs 75 kg. Dosage is 8 units/kg x 75 kg = 600 units. Determine the volume per dose: The calcitonin solution contains 200 units/mL. The nurse needs to administer 600 units. Divide 600 units / 200 units/mL = 3 mL.