Welcome
Ordering and Supplemental Information
Proficiency Testing/EQA
Quality Management Tools
Learning
Publications

Proficiency Testing/EQA / 2026 Surveys /
Coagulation

Please log in to determine if you are eligible to purchase PT Programs.
COAGULATION-LIMITED - CGL
CGL
Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).

Analyte/Procedure Challenges per Shipment Number of Shipments
Activated partial thromboplastin time 5 Three shipments per year
Fibrinogen 5
International normalized ratio (INR)* 5
Prothrombin time 5
D‑dimer 2
Fibrin(ogen) degradation products, plasma 1
Fibrin monomer 2

*Participants reporting INR results will receive a special evaluation to assess the INR calculation.


For multiple instrument reporting options, see the Quality Cross Check program, CGLQ.


Program Information

  • Seven 1.0‑mL lyophilized plasma specimens
  • Conventional and International System of Units (SI) reporting offered

Shipping Schedule

  • Shipment A: January 20
  • Shipment B: May 4
  • Shipment C: August 17




Guest

Log in/Register