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A sample distribution programme for erythropoietin.

J T Marsden1, P Day, R Ellis

  • 1Department of Clinical Biochemistry, King's College Hospital, London, UK. joanne.marsden@kingsch.nhs.uk

Clinical and Laboratory Haematology
|August 11, 2006
PubMed
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A survey revealed that few UK labs measure serum erythropoietin (EPO) and none use external quality assessment. A new scheme showed method variations, highlighting the need for EPO quality assessment.

Area of Science:

  • Clinical Chemistry
  • Laboratory Medicine
  • Endocrinology

Background:

  • Serum erythropoietin (EPO) measurement is crucial for diagnosing and managing various anemias and kidney diseases.
  • Currently, limited participation exists in external quality assessment (EQA) schemes for serum EPO assays in the UK.
  • Laboratories utilize diverse commercially available immunoassays for serum EPO quantification.

Purpose of the Study:

  • To assess the current landscape of serum EPO measurement in UK laboratories.
  • To evaluate the performance and variability of different commercially available immunoassays for serum EPO.
  • To establish the necessity and feasibility of an EQA scheme for serum EPO.

Main Methods:

  • A survey was distributed to laboratories participating in the UKNEQAS Haematinics Scheme.

Related Experiment Videos

  • Six laboratories reported measuring serum EPO using commercial immunoassays.
  • A 2-year EQA pilot program was conducted, comparing results from eight different assay kits across three sample distributions.

    • Main Results:

    • Only six out of 120 surveyed laboratories actively measured serum EPO.
    • No participating laboratory was enrolled in an existing EQA scheme for serum EPO.
    • Significant variation in serum EPO concentrations (2.9-200 U/l) was observed across different assay methods when compared to the overall mean.

    Conclusions:

    • The study highlights a significant gap in external quality assessment for serum EPO measurements in the UK.
    • The observed variability underscores the need for a dedicated EQA scheme to improve assay standardization and accuracy.
    • Implementing an EQA program for serum EPO is essential for reliable clinical diagnostics and patient management.