Posted: January 14th, 2016
Cowling’s rule. Cowling’s rule is another function for determining the child’s dosage of a drug. For this rule, the formula
d = D(a+1)
24
(expresses the child’s dosage d as a function of the adult dosage D and the child’s age a.)
a) If a doctor prescribes 1000 milligrams of acetaminophen for an adult, then how many milligrams would she prescribe for a six-year-old child using Cowling’s rule?
b) If a doctor uses Cowling’s rule to prescribe 200 milligrams of a drug to a child when she would prescribe 600 milligrams to an adult, then how old is the child?
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