On which of the following are calculations most precisely based to determine proper drug dosages for children?
a. The child's weight
b. The child's height
c. The child's age
d. The child's body surface area
D
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A Drug calculations are not most precise when made on the basis of a child's weight. Height and weight do not always correlate with the maturity of the child's organs, such as the liver, for metabolizing a drug.
B Drug calculations are not most precise when made on the basis of a child's height.
C Drug calculations are not most precise when made on the basis of a child's age. Children vary widely in size and maturity for chronological age.
D The most accurate method of calculating pediatric doses is based on a child's body surface area.
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