A client with an extrapyramidal reaction receives a prescription for diphenhydramine 35 mg IM. The medication is supplied as 50 mg/mL in a 1 mL prefilled single- use syringe. How many mL should the nurse give? (Enter the numerical value only. If rounding is required, round to the nearest tenth.)

To find the volume of diphenhydramine the nurse should administer, we can divide the prescribed dose (mg) by the concentration (mg/mL) of the medication, and round to the nearest tenth: 1. Prescribed dose: 35 mg of diphenhydramine 2. Medication concentration: 50 mg/mL (milligrams of diphenhydramine per milliliter of solution) 3. Calculate the volume to administer: Volume (mL) = Dose (mg) / Concentration (mg/mL) Volume (mL) = 35 mg / 50 mg/mL Volume (mL) = 0.7 mL (round to the nearest tenth) Therefore, the nurse should administer 0.7 mL of diphenhydramine.