Towards harmonization of external quality assessment/proficiency testing in hemostasis

Emmanuel J. Favaloro, Ian Jennings, John Olson, Elizabeth M. Van Cott, Roslyn Bonar, Robert Gosselin, Piet Meijer

Research output: Contribution to journalReview articlepeer-review

6 Scopus citations

Abstract

Quality in diagnostic testing represents a key target of laboratory medicine, for which an assurance around the quality of testing is expected from all involved in the process. Laboratories attempt to assure the quality of their testing by various processes, but especially by performance of internal quality control and external quality assessment (EQA). This is especially true for tests of hemostasis and coagulation. EQA in general provides information on test accuracy and on evaluation of long-term laboratory performance. EQA providers support laboratory performance by various means, including distribution of material for testing of analytes ("proficiency testing"), educational support through expert advice, distribution of publications or case series. Participation in EQA is often a laboratory accreditation requirement. This review aims to identify some of the strengths and weaknesses of EQA, and targets attempts towards harmonization of EQA practice, in order to achieve the best outcome for participant laboratories and, thus, for patients and their clinical care providers.

Original languageEnglish (US)
Pages (from-to)115-126
Number of pages12
JournalClinical Chemistry and Laboratory Medicine
Volume57
Issue number1
DOIs
StatePublished - Jan 1 2019

Keywords

  • Coagulation
  • External quality assessment
  • Harmonization
  • Hemostasis
  • Proficiency testing

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Biochemistry, medical

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