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Clin Chim Acta. 2000 Jul;297(1-2):239-49.

Standardization activities for harmonization of test results.

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DiaSys Diagnostic Systems, Scientific Affairs, Alte Strasse 9, D-65558, Holzheim, Germany.


In the last years the search for sensitive and specific markers of renal damage and/or renal function has conducted to the development of laboratory assays for measurement of urinary proteins such as albumin, beta(2)-microglobulin, alpha(1)-microglobulin, cystatin C, etc. Furthermore, there have been new applications of already known markers based on different, reformulated methods which often rely on more advanced technologies. It is evident that such developments are connected with analytical and interpretative problems for laboratory managers and clinicians. In this situation, it is essential that international societies develop comprehensive measures for the quality management of these assays and issue uniform and carefully elaborated guidelines to ensure optimal test utilization. International activities are also directed to the development of optimized and standardized methods as well as to the production and evaluation of appropriate reference materials and, finally, to the establishment of appropriate reference ranges and cut-off values for specific analytes. The main use of reference materials is in the transfer of their accurately assigned values to the calibrators of diagnostic companies for calibration of commercially available test systems. These international standardization activities and strategies will allow a harmonized approach to disease management using a more reliable laboratory testing based on quality and value.

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