A nurse is determining whether a medication is ordered to be given at the appropriate intervals. This is done by assessing the half-life of the medication. The serum half-life (t ) of a drug is the time required:
a. for half of a drug dose to be absorbed.
b. after absorption for half of the drug to be eliminated.
c. for a drug to be achieve maximum effectiveness.
d. for half of the drug dose to be completely distributed.
ANS: B
The half-life (t ) of a drug is the time it takes for one half of the drug concentration to be eliminated.
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