APPLICATION OF CLSI EP15A3 GUIDELINE FOR PRECISION, TRUENESS VERIFICATION OF BIOCHEMISTRY TESTS ON THE ROCHE COBAS 6000 SYSTEM

Thùy Dương Thái, Thị Chi Mai Trần, Huy Đông Nguyễn , Thị Thanh Bình Đàm

Main Article Content

Abstract

Method verification is imperative to provide reliable test results before the method is implemented. The purpose of this study was to verify the precision and truness of some biochemistry tests on the Roche Cobas 6000 system. The Roche’s quality control materials of 02 levels were used to conduct the experiments of precision and trueness of 10 biochemistry tests including serum Uric acid, Albumin, ALT, Amylase, AST, Creatinin, GGT, Glucose, total Protein, Ure according to CLSI EP15-A3. Results: for the majority of the analytes, repeatability and within-laboratory CV were below the manufacturer’s claim or below the upper verification limit, the mean values of the conducted data were within the verification intervals or bias were less than acceptable bias based on desireable biological variation database, total error were less than acceptable total error (TEa) base on CLIA analytical quality requirements. All the analytes on this study are reliable and can be used to provide medical services.

Article Details

References

1. Bộ Y tế. Quyết định ban hành tiêu chí đánh giá mức chât lượng phòng xét nghiệm y học (2429/QĐ-BYT). Published online 2017.
2. User Verification of Precision and Estimation of Bias; Approved Guideline - Third Edition. Vol 34. Clinical and Laboratory Standards Institute; 2014.
3. Desirable Biological Variation Database specifications - Westgard. Accessed November 22, 2022. https://www.westgard.com/ biodatabase1.htm
4. CLIA Requirements for Analytical Quality - Westgard. Accessed March 19, 2023. https://www.westgard.com/clia.htm#chem
5. Adriaan J. van Gammeren, Nelly van Gool, Monique J.M. de Groot, Christa M. Cobbaert. Analytical performance evaluation of the Cobas 6000 analyzer - special emphasis on trueness verification. Clin Chem Lab Med. 2008; 46(6):863-871. doi:10.1515/CCLM.2008.159