A nurse is preparing to administer diphenhydramine 12.5 mg PO every 6 hr. Available is diphenhydramine syrup 12.5 mg/5 mL. How many tsp should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A. This is inaccurate, check rationale for D for stepwise calculation B. This is inaccurate, check rationale for D for stepwise calculation C. This is inaccurate, check rationale for D for stepwise calculation D. Step 1: Use the formula Amount to administer (mL) = (Desired dose ÷ Dose available) × Volume available Step 2: Insert known values Desired dose = 12.5 mg Dose available = 12.5 mg Volume available = 5 mL Amount to administer = (12.5 ÷ 12.5) × 5 Amount to administer = 1 × 5 Amount to administer = 5 mL Step 3: Convert mL to tsp 1 tsp = 5 mL 5 mL ÷ 5 = 1 tsp Answer: 1tsp