Help Please log in to determine if you are eligible to purchase PT Programs. LIGAND ASSAY-GENERAL - K 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 Alpha‑fetoprotein (AFP) 5 Three shipments per year Carcinoembryonic antigen (CEA) 5 Cortisol 5 Ferritin 5 Folate, serum 5 Human chorionic gonadotropin (hCG), quantitative 5 Immunoglobulin E (IgE) 5 Prostate-specific antigen (PSA), total 5 p2PSA 5 Prostate-specific antigen, complexed (cPSA) 5 Prostate-specific antigen (PSA), free 5 Prostatic acid phosphatase (PAP) 5 Triiodothyronine (T3), free 5 Triiodothyronine (T3), total 5 T3 uptake and related tests 5 Thyroxine (T4), free 5 Thyroxine (T4), total 5 Thyroid‑stimulating hormone (TSH) 5 Vitamin B12 5 Program Information Five 5.0‑mL liquid serum specimens Conventional and International System of Units (SI) reporting offered Shipping Schedule Shipment A: April 4 Shipment B: July 18 Shipment C: November 7 Guest Log in/Register Customers Who Bought This Item Also Bought LIGAND ASSAY CVL VIEW DETAILS > PROSTATE-SPECIFIC ANTIGEN CVL VIEW DETAILS >