All of the following are characteristics of nonfermenters except:
A)thin gram-negative bacilli or coccobacilli.
B)oxidase positive.
C)indole positive.
D)resistance to a variety of antimicrobials, such as aminoglycosides, third-generation cephalosporins, penicillins, and fluoroquinolones.

Question

Quizplus · Accepted Answer

Some characteristics or initial clues can indicate the presence of a nonfermenter in the clinical laboratory: thin gram-negative bacilli or coccobacilli on Gram stain; oxidase-positive reaction, although reaction can be weak and variable; nonreactivity in 24 hours in commercial kit systems for the identification of Enterobacteriaceae; no acid production in the slant or butt of TSIA or KIA; and resistance to a variety of classes of antimicrobial agents, such as aminoglycosides, third-generation cephalosporins, penicillins, and fluoroquinolones.

All of the Following Are Characteristics of Nonfermenters Except