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CHEMISTRY-LIMITED - C4
C4
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
Bilirubin, direct 5 Three shipments per year
Bilirubin, total* 5
Calcium 5
Chloride 5
Cholesterol, total 5
Creatinine 5
Glucose 5
HDL cholesterol 5
Human chorionic gonadotropin (hCG), quantitative 5
LDL cholesterol, measured 5
Potassium 5
Sodium 5
Triglycerides 5
Urea nitrogen (BUN) 5
Uric acid 5
Carbon dioxide (CO2) 5

*General Chemistry and Therapeutic Drugs Surveys do not fulfill the CAP accreditation requirements for neonatal bilirubin proficiency testing. See Surveys NB, NB2.


Program Information

  • Five 5.0‑mL liquid serum specimens
  • Conventional and International System of Units (SI) reporting offered
  • For second instrument reporting options, see the Quality Cross Check program, CZQ

Shipping Schedule

  • Shipment A: March 11
  • Shipment B: June 3
  • Shipment C: September 30






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