Use the standard to establish rigorous QC protocols for every lot.
By adhering to CLSI M22-A3, you aren’t just checking a box for accreditation. You are ensuring that every chromatogram, every peak, and every patient result meets the highest standard of clinical reliability. clsi m22a3 pdf
Focus on visual inspection and documentation of media upon receipt rather than full organism-based retesting for "exempt" media. Use the standard to establish rigorous QC protocols
The CLSI M22-A3 guideline, "Quality Control for Commercially Prepared Microbiological Culture Media," establishes standards for testing laboratory media to ensure performance and diagnostic accuracy, often through manufacturer QC reliance [1, 2]. The document classifies media into exempt and non-exempt types, allowing labs to reduce redundant testing for validated products while maintaining stringent quality control for complex media [4, 5]. Focus on visual inspection and documentation of media
: Ensuring differential media produces the correct color changes or reactions (e.g., lactose fermentation on MAC).
