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VON WILLEBRAND FACTOR - CGS3
CGS3
Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).

Module/Analyte Challenges per Shipment Number of Shipments
Activated partial thromboplastin time* 2 Two shipments per year
von Willebrand Factor Antigen Module
Factor VIII assay 2
von Willebrand factor (antigen, activity, multimers) 2
Factor VIII inhibitor 2

*Not appropriate for meeting regulatory requirements.


Program Information

  • Two 2.0‑mL of lyophilized plasma specimens

Shipping Schedule

  • Shipment A: March 13
  • Shipment B: August 28




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