An antimicrobial agent with a narrow spectrum of activity reflects a drug that has:
A) only a weak antibiotic action.
B) effectiveness against a relatively small number of microbes.
C) a low potency.
D) a narrow margin of safety.

Question

Quizplus · Accepted Answer

An antimicrobial agent with a narrow spectrum of activity is effective against only a relatively small number of microbes, as opposed to broad-spectrum antimicrobial agents which cover a wider range of microbes. Therefore, option B is the correct choice.

An Antimicrobial Agent with a Narrow Spectrum of Activity Reflects