A nurse is preparing to administer lidocaine 50 mg IV push (injectable). Available is lidocaine 200 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.)

Calculation: Identify the ordered dose and available concentration Ordered Dose: 50 mg Available Concentration: 200 mg/mL Calculate the volume to administer Volume (mL) = Ordered Dose ÷ Concentration Volume = 50 ÷ 200 Volume = 0.25 mL Round to the nearest tenth = 0.3 mL