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Platelet function testing: quality assurance.

Catherine P M Hayward1, John Eikelboom

  • 1Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada. haywrdc@mcmaster.ca

Seminars in Thrombosis and Hemostasis
|April 12, 2007
PubMed
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Quality assurance for platelet function tests is lacking, hindering accurate diagnosis and monitoring of antiplatelet therapy. This review addresses quality assurance needs for established and emerging platelet function assays.

Area of Science:

  • Clinical laboratory science
  • Hematology
  • Pharmacology

Background:

  • Platelet function tests are crucial for diagnosing platelet disorders and monitoring antiplatelet drug therapy.
  • Despite their importance, quality assurance (QA) for these tests is not widely implemented.
  • Challenges include the need for fresh blood samples and complex assay procedures.

Purpose of the Study:

  • To review quality assurance issues pertinent to platelet function testing.
  • To highlight the application of QA to both established and emerging platelet function assays.

Main Methods:

  • Literature review focusing on quality assurance in platelet function testing.
  • Analysis of challenges in standardizing and evaluating platelet function assays.
  • Examination of existing and needed QA data for various platelet function tests.

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Main Results:

  • Platelet function testing is characterized by a lack of guidelines and poor standardization across laboratories.
  • Internal and external quality assurance exercises for these tests are infrequent.
  • While newer assays show promise, comprehensive QA data is often missing for both new and established methods.

Conclusions:

  • There is a critical need to implement robust quality assurance programs for platelet function tests.
  • Standardization and regular evaluation are essential to optimize the performance and clinical utility of these assays.
  • Addressing QA deficiencies will improve diagnostic accuracy and therapeutic monitoring in patients.