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25-OH VITAMIN D, TOTAL - VITD
VITD
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
25-OH vitamin D, total 3 Two shipments per year

Program Information

  • Three 1.0‑mL liquid serum specimens
  • Conventional and International System of Units (SI) reporting offered

Shipping Schedule

  • Shipment A: April 25
  • Shipment B: November 21






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