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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
Antistreptolysin O (ASO)* 5 Three shipments per year

*ASO is a regulated analyte and is graded for both qualitative and quantitative methods. Semiquantitative and/or titer results for this analyte are ungraded/educational in this Survey and do not meet regulatory requirements.

Program Information

  • Five 1.0‑mL serum specimens

Shipping Schedule

  • Shipment A: March 23
  • Shipment B: August 17
  • Shipment C: November 16