Multiple Choice
Quality control results for disk diffusion AST using appropriate ATCC strains of bacteria showed zone size diameters decreasing over time for a few antimicrobials.Which of the following statements is a possible explanation?
A) Antimicrobial disks were stored in a frost-free freezer.
B) Concentration of the bacterial inoculum was 5× 105 CFU/mL.
C) Depth of Mueller-Hinton agar plates measured 3 mm.
D) Plates were incubated less than 16 hours in ambient air.
Correct Answer:
Verified
Correct Answer:
Verified
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