A nurse is preparing to administer ziprasidone 10 mg IM to a client who has acute agitation and schizophrenia. Available is ziprasidone injection 20 mg/ml. How many mi should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

The nurse should administer 0.5 ml of ziprasidone injection. Step-by-Step Calculation Understanding the Problem We need to administer 10 mg of ziprasidone. The available concentration is 20 mg/ml. We need to find out how many milliliters (ml) to administer. Setting up the Equation We can use the formula: Desired dose (mg) = Concentration (mg/ml) X Volume (ml) Calculating the Volume We know the desired dose (10 mg) and the concentration (20 mg/ml). We need to findthe volume. Rearranging the formula to solve for volume, we get: Volume (ml) = Desired dose (mg) / Concentration (mg/ml) Substituting the values: Volume (ml) = 10 mg / 20 mg/ml = 0.5 ml The nurse should administer 0.5 ml of ziprasidone injection.