Thu, 17 May 2012 18:52:41 +0100 FeedCreator 1.7.3 http://www.clinlabnavigator.com/Proficiency-Testing/proficiency-testing.html 91   CLIA 88 requires that laboratories successfully participate in an approved proficiency testing program. Proficiency testing is the external component of quality control since it involves peer review. It primarily measures accuracy because each laboratory’s results are compared to the interlaboratory mean, which is assumed to be the true value. Each individual laboratory’s accuracy is evaluated by how close its results are to the mean.   Proficiency test results are re ... Proficiency Testing Mon, 08 Mar 2010 11:42:57 +0100