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A Comprehensive Analysis of Metrological Traceability Tools for Urine Albumin Measurements
Mauro Panteghini1, Robert Wielgosz2, W Greg Miller3
1Department of Laboratory Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Torun, Poland.
Clinical Chemistry
|March 19, 2026
Summary
Standardizing urine albumin (UA) measurements is crucial for diagnosing kidney disease. This analysis reviews current reference materials and procedures, recommending improvements for accurate UA testing globally.
Area of Science:
- Clinical Chemistry
- Biomarker Standardization
- Metrology in Medicine
Background:
- Urine albumin (UA) concentration is a vital biomarker for kidney disease and vascular damage.
- Current UA measurement procedures lack standardization across medical laboratories.
- Significant advancements in UA measurement standardization tools have occurred over the past 17 years.
Purpose of the Study:
- To comprehensively analyze the current status and availability of reference measurement system components for UA.
- To provide recommendations for improving UA measurement standardization.
- To identify aspects requiring further clarification for robust standardization.
Main Methods:
- Analysis of existing reference measurement system components for UA.
- Review of progress in developing tools for UA measurement standardization.
- Evaluation of secondary certified reference materials (CRMs) and reference measurement procedures.
Main Results:
- Progress has been made in developing tools for UA measurement standardization.
- Key areas for improvement include CRM interchangeability and medically suitable performance specifications.
- Availability of reference measurement system components for UA was assessed.
Conclusions:
- Standardization of UA measurements is essential for accurate clinical diagnostics and prognostics.
- Further research on CRM interchangeability and performance specifications is needed.
- Recommendations are provided to aid international groups and IVD manufacturers in achieving UA measurement standardization and metrological traceability.
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