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Proficiency Testing/EQA / 2024 Surveys /
Endocrinology

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LIGAND ASSAY-GENERAL - K
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 2
  • Shipment B: July 15
  • Shipment C: November 4






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