WAYNE, PA--(Marketwire - September 10, 2008) - Proficiency testing (PT) is an important part of quality management in the clinical laboratory. PT complements internal quality control (QC) to help ensure patient test results are valid. Clinical and Laboratory Standards Institute (CLSI) recently published an updated document, “Assessment of Laboratory Tests When Proficiency Testing Is Not Available; Approved Guideline -- Second Edition (GP29-A2),” which offers methods to assess test performance when formal PT programs are not available.
