Proficiency Testing/EQA / 2024 Surveys / Coagulation Help Please log in to determine if you are eligible to purchase PT Programs. HEPARIN - CGS4 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* 3 Two shipments per year International normalized ratio (INR) 3 Prothrombin time* 3 Heparin Module Heparin activities using methodologies including Anti-Xa (unfractionated, low molecular weight, and hybrid curve) 3 Thrombin time 3 *Not appropriate for meeting regulatory requirements. Program Information Three 1.0‑mL lyophilized plasma specimens Shipping Schedule Shipment A: March 18 Shipment B: August 26 Guest Log in/Register Customers Who Bought This Item Also Bought An Algorithmic Approach to Hemostasis Testing, 2nd Edition VIEW DETAILS > HEPARIN CVL VIEW DETAILS >