: Quality Control for Commercially Prepared Microbiological Culture Media; Approved Standard—Third Edition. : Electronic PDF only. : This standard is currently
The laboratory performs a visual inspection of the shipment (checking for cracks, hemolysis, freezing, or contamination).
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The standard lists media that are exempt from routine quality control testing, provided they come from a reputable manufacturer. M22-A3 added 27 new media to this list based on surveys by the College of American Pathologists.
Many universities, hospital networks, and large reference laboratories hold institutional memberships with CLSI. If you are affiliated with such an organization, you may have free access to the PDF via your institution’s internal library portal. The Risks of Unauthorized PDF Downloads : You can purchase and download the full
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CLSI M22-A3 is a standard that outlines the best practices for collecting, transporting, and processing clinical specimens. The standard is designed to ensure that specimens are handled and processed in a way that maintains their integrity and prevents contamination. This is crucial for accurate laboratory testing and diagnosis. If you are affiliated with such an organization,
The Clinical and Laboratory Standards Institute (CLSI) is a globally recognized organization that develops and publishes standards for clinical laboratory testing. One of its most widely used standards is CLSI M22-A3, which provides guidelines for the collection, transport, and processing of clinical specimens. In this article, we will explore the CLSI M22-A3 standard, its significance, and provide a direct link to the PDF version.
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Testing with specific ATCC control strains to ensure expected growth.
CLSI has designated M22-A3 as an . It is no longer being reviewed through the CLSI Consensus Document Development Process. However, the institute maintains that the document is technically valid (as of October 2022) and, because of its value to the laboratory community, it is being retained in CLSI's library.