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    Ati lpn med surg endocrine proctored exam
    Calculation

    A nurse is preparing to administer a dexamethasone 1.5 mg/kg/day PO to divide equally every 6 hr to a preschool-age child who weighs 22 lb. Available is dexamethasone oral solution 1 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

    mL

    Explanation & Rationale

    Convert weight: 22 lb ÷ 2.20462 = ≈ 9.98 kg. Total daily dose = 1.5 mg/kg × 9.98 kg = ≈ 14.97 mg/day. Dose every 6 hr (4 doses/day) = 14.97 ÷ 4 = ≈ 3.742 mg per dose. Concentration 1 mg/mL → volume per dose = 3.742 mL → rounded to nearest tenth = 3.7 mL.

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