Proficiency Testing/EQA / Hematology and Clinical Microscopy / Clinical Microscopy Help Please log in to determine if you are eligible to purchase PT Programs. FECAL FAT - FCFS 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 Fecal fat, qualitative 2 Two shipments per year Program Information Two 10.0‑g simulated fecal fat specimens For microscopic detection of neutral fats (triglycerides) and/or split fats (total free fatty acids) Shipping Schedule Shipment A: February 27 Shipment B: September 11 Guest Log in/Register