A nurse is providing discharge teaching to the parent of a child who is prescribed diphenhydramine elixir 12.5 mg every 4 hr as needed. The amount available is diphenhydramine elixir 50 mg/5 mL. How many mL should the nurse administer per dose? Round to the nearest tenths place. Enter numeric value only (numbers and decimal points only, no commas or labels)

Identify the given information: Prescribed dose: 12.5 mg of diphenhydramine elixir Available concentration: 50 mg/5 mL Determine the volume to be administered: We can set up a proportion to solve for the unknown volume (X): 50 mg/5 mL = 12.5 mg/X mL Cross-multiplying gives us: 50 mg x X mL = 12.5 mg x 5 mL Simplifying: 50X = 62.5 Solving for X: X = 62.5 / 50 = 1.25 mL Round off to the nearest tenth: 1.25 rounds off to 1.3 mL