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ACCURACY-BASED URINE - ABU
ABU
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
Calcium 3 Two shipments per year
Creatinine 3
Protein, total 3
Urine albumin, quantitative 3
Urine albumin:creatinine ratio 3

Target values for albumin are obtained by LC-MS/ MS after trypsin digestion, performed by the Renal Testing Laboratory, Mayo Clinic, Rochester, MN, using calibration materials prepared from human serum albumin (>99% pure).

Other analytes will be compared by peer group for harmonization purposes.


Program Information

  • Three 5.0‑mL human urine specimens

Shipping Schedule

  • Shipment A: July 9
  • Shipment B: December 17






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