The Mueller-Hinton Medium Used in the Kirby-Bauer Assay Contains No

question 6

Multiple Choice

The Mueller-Hinton medium used in the Kirby-Bauer assay contains no para-aminobenzoic acid (PABA, normally found in most media) because it

• A) causes an increase in bacterial lag time.
• B) interferes with the diffusion of penicillin and penicillin-like drugs.
• C) creates a false bacteriostatic effect.
• D) polymerizes streptomycin drugs and their derivatives.
• E) inhibits sulfa antibiotics testing.

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