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2023 EQA SCHEMES
EQA 2023 - Bone Markers (OS)
Expert Biologists - Scheme Coordinators:
Laurence CHARDON, Karim CHIKH and Marie LOPEZ
EQA performed since 2021
Number of participating laboratories in 2022: 60
Scheme organized by ProBioQual and placed under the aegis of the FAEEQ

1 - Scheme Overview

This external quality assessment scheme assesses the accuracy of the assay of 2 serum markers used in the monitoring of osteoporosis: C-terminal telopeptide (CTX) and P1NP.

This External Quality Assessment is proposed by all the Interlaboratory Comparison Organizations members of the French Federation of EQA (F.A.E.E.Q.).

2 - Assessment Frequency

Number of surveys per year: 4
Number of control samples per survey: 1 or 2
Number of samples per year: 6

3 - List of Analytes Assessed 

  • CTX (C-terminal telopeptide)
  • P1NP

4 - Description of the Control Samples

Human origin control serums in lyophilized form (samples to be resuspended in 3 mL of distilled water).

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