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Antimicrobial Susceptibility Testing in Microbiology: Methods, Breakpoints, and Beyond


Presented by Andrea Prinzi PhD, MPH, SM(ASCP)

This session will review core concepts of antimicrobial susceptibility testing (AST) in the microbiology lab including methods of testing, how interpretive criteria are (breakpoints) are determined and updated, and how AST plays a role in public health.

Learning Objectives
At the end of this session, the attendee will be able to:

  1. Describe at least two different types of antimicrobial susceptibility testing (AST) performed in the microbiology lab
  2. Explain the process for AST breakpoint determination and updates
  3. Summarize the role AST plays in public health and antimicrobial resistance prevention and control
Instruction Level: Intermediate

ASCLS is approved as a provider of continuing education programs in the clinical laboratory sciences by the ASCLS P.A.C.E. ® Program.


  • Andrea Prinzi PhD, MPH, SM(ASCP)

    Dr. Prinzi is a clinical microbiologist by training and spent over 12 years as a bench microbiologist at Children’s Hospital Colorado. She obtained her Master’s in Public Health with an emphasis in epidemiology in 2014, and spent several years designing and teaching microbiology-focused programs to clinical providers on the University of Colorado Anschutz Medical Campus. In early 2022, Dr. Prinzi obtained her PhD in clinical and translational science where her research focused on antimicrobial and diagnostic stewardship of pneumonia diagnostics in mechanically ventilated patients. She has published several peer-reviewed manuscripts that focus on stewardship and infectious disease diagnostics, and she is an active blog writer for the American Society for Microbiology. Dr. Prinzi currently works as an infectious disease medical science liaison for bioMérieux. The opinions and statements in this presentation do not reflect the opinions of bioMérieux.

December 20, 2022
Tue 1:00 PM EST

Duration 1H 0M

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