A child weighs 40 lbs. The adult dose of a medication is 60 mg. What would be the child's dose?
12 mg
16 mg
18 mg
20 mg
16 mg
Rationale: The child's dose would be 16 mg. Use Clark's rule: Weight in lbs / 150 x adult dose. Therefore, 40/150 x 60 mg = 16 mg
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