Ati lpn paediatrics 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 per dose
Explanation & Rationale
Convert weight: 22 lb ÷ 2.2 = 10 kg Total daily dose: 1.5 mg/kg × 10 kg = 15 mg/day Divided every 6 hr = 4 doses/day → 15 mg ÷ 4 = 3.75 mg/dose 1 mg/mL solution → 3.75 mg = 3.8 mL (rounded to nearest tenth) Correct answer: 3.8 mL per dose
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