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The page below is a sample from the LabCE course Quality Control. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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External Quality Control, continued

  • In the United States, participation in a proficiency testing program is required by the Clinical Laboratory Improvement Amendment (CLIA), if a laboratory is performing testing that is not classified as waived testing.
  • Accrediting organizations also require participation in a proficiency testing program.
  • Because the results must be returned to a testing center for comparison, there is a delay between the time of testing and the receipt of any statistical summary.