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Proficiency Testing/EQA / 2025 Surveys / General Chemistry and Therapeutic Drug Monitoring /
Special Chemistry

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PSEUDOCHOLINESTERASE - C7
C7
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
Pseudocholinesterase 1 Three shipments per year

Program Information

  • One 2.0‑mL lyophilized serum specimen

Shipping Schedule

  • Shipment A: March 3
  • Shipment B: May 27
  • Shipment C: September 22






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