Proficiency Testing/EQA / 2024 Surveys / Hematology and Clinical Microscopy / Clinical Microscopy Help Please log in to determine if you are eligible to purchase PT Programs. GLUCOSE-6-PHOSPHATE DEHYDROGENASE - G6PDS Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS). Analyte Challenges per Shipment Number of Shipments G6PD, qualitative and quantitative 2 Two shipments per year Program Information Two 0.5‑mL lyophilized hemolysate specimens Shipping Schedule Shipment A: March 18 Shipment B: October 7 Guest Log in/Register