How much medication should a 65-lb. child receive if the adult dose is 500 mg?
115 mg
216 mg
325 mg
375 mg
216 mg
Rationale: Using Clark's rule (weight in pounds divided by 150, multiplied by the adult dose), the correct dose for this child is calculated as follows: 65 lbs -------- 150 x 500 mg = 216 mg.
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