College of American Pathologists
Printable Version

  Steps to Take After PT Failures


May 2005
Originally published in CAP TODAY

Desiree A. Carlson, MD, Editor, Laboratory Accreditation News

  • Modify (narrow) QC range.
  • Increase frequency of calibration.
  • Perform instrument function verification.
  • Revise the analytic procedure.
  • Design a process to verify clerical entries before PT result submission.
  • Retrain testing personnel in the proper procedures for sample preparation, testing, and reporting.

For more information, see NCCLS GP-27A, "Use of Proficiency Testing to Improve the Clinical Laboratory [1999]."


Related Links