A nurse is preparing to administer risperidone 25 mg IM to an older adult client who has schizophrenia. Available is risperidone injection 25 mg/2 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

The nurse should administer 2 mL of risperidone. Step-by-Step Calculation Understanding the Problem Desired risperidone dose: 25 mg Available concentration: 25 mg/2 mL We need to find the volume to administer. Calculations Since the desired dose (25 mg) is equal to the concentration per mL (25 mg/2 mL), we can directly administer the entire 2 mL vial. The nurse should administer 2 mL of risperidone.