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Proficiency Testing/EQA / 2025 Surveys /
Endocrinology

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RBC FOLATE - FOL
FOL
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
RBC folate 2 Three shipments per year

Program Information

  • Two 2.0‑mL lyophilized whole blood specimens
  • Conventional and International System of Units (SI) reporting offered

Shipping Schedule

  • Shipment A: March 31
  • Shipment B: July 14
  • Shipment C: November 3




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