Immunohematology Proficiency Testing Program

Authentication

The Program evaluates the proficiency test results for over 300 laboratories. Grading criteria established by CLIA Regulations, Part 493, Subpart I, Section 493.959 are used to determine the accuracy of a laboratory's response. The laboratory's response for each analyte is compared to the response that reflects 100% consensus of 20 referee laboratories or 95% or more of all the participating laboratories, except for unexpected antibody detection and antibody identification, for which the laboratory's response for each analyte is compared to the response that reflects 95% consensus of 20 referee laboratories or 95% or more of all the participating laboratories. Referee laboratories are selected from New York State participating laboratories with consistent excellent performance.