Proficiency Testing/EQA / 2024 Surveys / Toxicology Help Please log in to determine if you are eligible to purchase PT Programs. URINE DRUG ADULTERANT/INTEGRITY - DAI 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 Creatinine 3 Two shipments per year Glutaraldehyde 3 Nitrite 3 Oxidants 3 pH 3 Specific gravity 3 Program Information Three 25.0‑mL urine specimens Shipping Schedule Shipment A: February 20 Shipment B: August 20 Guest Log in/Register Customers Who Bought This Item Also Bought Clinical Toxicology Testing: A Guide For Laboratory Professionals, 2nd edition VIEW DETAILS >