Proficiency Testing/EQA / 2024 Surveys / Accuracy-Based Programs / Accuracy-Based Programs Help Please log in to determine if you are eligible to purchase PT Programs. ACCURACY-BASED URINE - ABU 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 Calcium 3 Two shipments per year Creatinine 3 Protein, total 3 Urine albumin, quantitative 3 Urine albumin:creatinine ratio 3 Program Information Three 5.0‑mL human urine specimens Shipping Schedule Shipment A: June 25 Shipment B: December 10 Guest Log in/Register Customers Who Bought This Item Also Bought Medical Kidney Diseases: Morphology-Based Novel Approach to Renal Biopsy VIEW DETAILS > URINE CHEMISTRY CVL VIEW DETAILS > URINE CHEMISTRY-GENERAL, VALIDATED MAT'L VIEW DETAILS > URINE CHEMISTRY-GENERAL VIEW DETAILS >