Help Please log in to determine if you are eligible to purchase PT Programs. PHARMACOGENETICS - PGX 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 CYP2C19 3 Two shipments per year CYP2C9 3 CYP2D6 3 CYP3A4 3 CYP3A5 3 CYP4F2 3 SLCO1B1 (rs4149056) 3 VKORC1 3 Program Information Three 25.0‑μg extracted DNA specimens Includes allele detection (genotyping) and/or interpretive challenges Shipping Schedule Shipment A: April 19 Shipment B: September 13 Guest Log in/Register