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.
LUPUS ANTICOAGULANT & MIXING STUDIES - CGS1
CGS1
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
International normalized ratio (INR)* 2
Prothrombin time* 2
Lupus Anticoagulant and Mixing Studies Module
Dilute Prothrombin Time 2
Dilute Russell’s viper venom time 2
Lupus anticoagulant sensitive aPTT (confirmation and screen) 2
50:50 mixing studies, PT and aPTT 2

*Not appropriate for meeting regulatory requirements.


Program Information

  • Two 2.0‑mL of lyophilized plasma specimens

Shipping Schedule

  • Shipment A: March 9
  • Shipment B: August 24




Guest

Log in/Register