The official CLSI page for the document states that "this document is available in electronic format only" (PDF), with a print version no longer available.
An additional 27 media were added to the "exempt" list, meaning labs can bypass routine QC organism testing for these items.
Interpretive criteria and breakpoints
The laboratory must verify that the expiration date is acceptable, the lot numbers match the invoicing, and the manufacturer's CLSI M22-A3 compliance certificate is on file. 3. Storage Monitoring
: As of 2016, US labs subject to CLIA regulations must either follow the standard's full retesting requirements for all media or develop an Individualized Quality Control Plan (IQCP) to maintain exemptions. Clinical & Laboratory Standards Institute | CLSI clsi m22a3 pdf
A valid copy of the manufacturer's M22-A3 certification is accessible.
The CLSI M22-A3 guideline is important because it helps ensure that blood cultures are collected, transported, and processed in a way that maximizes the chances of detecting bacterial or fungal pathogens. Accurate blood culture results are critical for guiding antimicrobial therapy and improving patient outcomes. The official CLSI page for the document states
Responsible for ensuring proper storage, handling, and checking for signs of contamination or deterioration upon receipt. Components of the M22-A3 Standard The CLSI M22-A3 PDF includes detailed guidelines on:
I can provide specific checklists or testing protocols tailored to your laboratory's regulatory requirements. Share public link The CLSI M22-A3 guideline is important because it
: The standard applies to various forms of commercial media, including plates and tubes, listed specifically within its tables. Proven Reliability
Some state or national public health portals offer summarized compliance checklists derived from M22-A3 for educational use. Conclusion
