American Society of Microbiology ABMM ABMM Question # 86 Topic 4 Discussion
ABMM Exam Topic 4 Question 86 Discussion:
Question #: 86
Topic #: 4
A clinical microbiology laboratory is performing antimicrobial susceptibility testing using the broth microdilution method. The minimum bactericidal concentration (MBC) is determined by:
A.
The lowest concentration of antibiotic that inhibits visible growth after 24 hours of incubation.
B.
The highest concentration of antibiotic that allows visible growth after 24 hours of incubation.
C.
Subculturing the clear wells from the MIC assay onto antibiotic-free media and determining the lowest concentration that results in no bacterial growth.
D.
Comparing the zone of inhibition around antibiotic disks to standardized tables.
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