PROFICIENCY TESTING

Proficiency testing (PT) is a type of external quality control to measure a laboratory's accuracy. Its purpose is to verify that the performance of each test site is in line with other labs performing the same analysis. Several times a year, 'blind' samples are sent to participants who analyze them and return the results to the PT provider. These results are then compared to other laboratories using the same testing method and a 'report card' is issued to the laboratory.

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ANNOUNCEMENTS