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Proficiency Testing/EQA / 2025 Surveys / Immunology and Flow Cytometry /
Immunology

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ANTISTREPTOLYSIN O - ASO
ASO
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

*This CLIA-required analyte may be reported as qualitative or quantitative. The quantitative results are not reported to CMS.


Program Information

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

Shipping Schedule

  • Shipment A: March 17
  • Shipment B: August 11
  • Shipment C: November 10




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