A Nurse Is Determining Whether a Medication Is Ordered to Be

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 1/2 ) 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.