A nurse is ordered to draw blood levels for a person receiving an antibiotic. The nurse is aware that peaks and troughs of serum antibiotic levels are monitored for drugs with a:
a. narrow therapeutic index.
b. large therapeutic index.
c. long half-life.
d. short half-life.
ANS: A
Medications with a narrow therapeutic index have a limited range between the therapeutic dose and the lethal dose.
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