A nurse is preparing to administer ziprasidone 17.5 mg IM to a client. Available is ziprasidone 20 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Identify the Desired Dose and Available Concentration: Desired Dose: 17.5 mg of ziprasidone Available Concentration: 20 mg/mL (This means there are 20 mg of ziprasidone in every 1 mL of solution) Set up the Calculation: We need to find the volume (in mL) that contains the desired dose of 17.5 mg. We can use the following formula: Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL) Plug in the Values and Calculate: Volume (mL) = 17.5 mg / 20 mg/mL Volume (mL) = 0.875 mL Round to the Nearest Tenth: 0.9 mL