Peak concentration of a drug is the:
A) plasma level at which toxic effects begin to occur
B) plasma drug levels below which therapeutic effects do not occur
C) highest level at which a drug is present in the body
D) minimum effective concentration and the toxic concentration
C) highest level at which a drug is present in the body
Peak concentration of a drug is the highest level at which it is present in the body, whereas the trough concentration is the lowest level at which a drug is present in the body.
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