As an active standard developed and copyrighted by CLSI, the official M45 document is a paid publication. However, CLSI offers different access options to accommodate various needs:
Utilize the specific QC strains designated in M45 to validate your customized media and testing environments before reporting patient results.
Conduct training sessions to familiarize technologists with the unique troubleshooting steps required for rare isolates.
Opportunistic pathogens often requiring lipid-enriched media for optimal growth.
M45 specifies exact formulations. Do not substitute: clsi document m45 pdf
The document is available for purchase and download through the following platforms:
I can provide detailed steps or clarify interpretive criteria for your specific scenario. Share public link
Typically specifies broth microdilution. Preferred Medium: Exact formulations for testing. Incubation Conditions: Temperature, atmosphere, and time.
Haemophilus (non-influenzae), Aggregatibacter , Cardiobacterium , Eikenella , and Kingella species. As an active standard developed and copyrighted by
CLSI Document M45, Methods for Antimicrobial Dilution and Disk Susceptibility Testing of Infrequently Isolated or Fastidious Bacteria , provides standardized, consensus-based procedures for susceptibility testing of challenging organisms. The third edition supports modern laboratory techniques, such as MALDI-TOF mass spectrometry, and offers essential interpretive criteria for monitoring emerging antimicrobial resistance. For the full standard, visit CLSI .
Helps track emerging resistance trends in rare bacterial species. Core Organisms Covered in CLSI M45
Implementing M45 requires a shift from automated testing to manual methods for the targeted organisms. Step 1: Identification
A: Some professors receive instructor copies. Ask your course director. Otherwise, many university libraries have CLSI subscriptions. Share public link Typically specifies broth microdilution
The heart of the CLSI M45 document lies in its clinical interpretive tables. For each organism or group, the document provides:
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Medical decisions may be based on obsolete breakpoints, leading to incorrect treatment reporting.
