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Kirby-Bauer Method

This Medical Laboratory Science lesson in Medical Microbiology supports laboratory science learning and laboratory interpretation for medical laboratory students and professionals.

Apply Kirby–Bauer procedure details that protect zone validity and interpretive category assignment.

Advanced26 min read15 sectionsMedical Microbiology
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Learning Objectives

Getting started

Section 1 of 15

Learning Objectives

Learning Objectives

Section: Learning Objectives

Each objective describes an AST bench competency, method, QC, and category assignment, not antimicrobial selection or dosing.

  • Execute Kirby–Bauer procedural checkpoints (colony age, inoculum, swabbing, disk timing, incubation, measurement) that protect zone validity
  • Troubleshoot common Kirby–Bauer failures involving inoculum, media depth/moisture, disk handling, and reading technique
  • Gate category assignment on QC performance and institutionally adopted breakpoint tables

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