On a breakpoint panel, when there is growth in the low concentration but no growth in the high concentration, the isolate is
A) susceptible.
B) resistant.
C) intermediate.
D) None of the above

Question

Quizplus · Accepted Answer

When there is growth in the low concentration but no growth in the high concentration of an antimicrobial agent on a breakpoint panel, the isolate is considered to have intermediate susceptibility. This means it falls between susceptible and resistant, indicating that the effectiveness of the antimicrobial against the isolate may depend on the dosing or the site of infection.

On a Breakpoint Panel, When There Is Growth in the Low