A nurse is preparing to administer epinephrine 0.5 mg IM to a client. Available is epinephrine 1 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.)

The nurse should administer 0.5 mL of epinephrine. Step-by-Step Calculation Understanding the Problem Desired dose: 0.5 mg epinephrine Available concentration: 1 mg/mL epinephrine Setting Up the Equation We can use the following formula: Desired dose (mg) = Concentration (mg/mL) X Volume (mL) We need to find the volume (mL). Calculating the Volume 0.5 mg = 1 mg/mL X Volume (mL) To isolate Volume, we divide both sides by 1 mg/mL: Volume (mL) = 0.5 mg / (1 mg/mL) Volume (mL) = 0.5 mL The nurse should administer 0.5 mL of epinephrine.