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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
Additional Information
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.
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