VPT-0153
QUESTION
Vancomycin active against?
OPTIONS
(A) G +ve bacteria
(B) G -ve bacteria
(C) G +ve bacteria and G -ve bacteria
(D) All of the above
ANSWER
(A) G +ve bacteria
EXPLANATION
Vancomycin inhibits cell-wall synthesis and is mainly active against gram-positive bacteria because it cannot readily penetrate the outer membrane of gram-negative organisms. Thus gram-positive bacteria is correct, while the gram-negative and combined options are incorrect.
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