SUMMARY MONITORING SIX SIGMA AND QGI IN THE EVALUATION AND FOLLOW-UP OF QUALITY FOR SELECTED BIOCHEMICAL TESTS ON THE AU5800 ANALYZER SYSTEM

Nguyễn Thị Thanh Phương 1 , , Đỗ Thị Thanh Đông 1 , Hồ Thị Ngọc Hạnh 1 , Nguyễn Trí Dũng 1 , Vũ Thị Minh Hương 1
1 Thong Nhat Hospital image/svg+xml
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DOI
10.63947/bvtn.v2i8.20
Published
2026-06-07
Issue Vol. 2 No. 8 (2026): Geriatric Medicine in the Era of Personalization, Technology, and Prevention
Section
Original Research
Categories
Research

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Thị Thanh Phương N, Thị Thanh Đông Đỗ, Thị Ngọc Hạnh H, Trí Dũng N, Thị Minh Hương V. SUMMARY MONITORING SIX SIGMA AND QGI IN THE EVALUATION AND FOLLOW-UP OF QUALITY FOR SELECTED BIOCHEMICAL TESTS ON THE AU5800 ANALYZER SYSTEM. JHA [Internet]. Vietnam; 2026 Jun. 7 [cited 2026 Jun. 18];2(8):141–146. https://tcsuckhoelaohoa.vn/bvtn/article/view/163 doi: 10.63947/bvtn.v2i8.20
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Abstract

To apply Six Sigma and Quality Goal Index (QGI) for evaluating and improving the quality of 10 routine biochemical tests (glucose, urea, creatinine, uric acid, ALT, GGT, calcium, magnesium, iron, CK) on the AU5800 analyzer at the Biochemistry Department, Thong Nhat Hospital. Subject and methods: he study utilized internal quality control (IQC) data from the AU5800 system at two control levels (Level 2 and Level 3) across two phases. Parameters such as bias, coefficient of variation (CV%), and Six Sigma metrics were calculated based on total allowable error (TEa), combined with analysis of the Quality Goal Index (QGI). Results: In Phase 1, 6/10 tests achieved a Sigma ≥4, while Urea and Creatinine had a Sigma of 2 with low QGI. In Phase 2, Sigma values for Urea and Creatinine improved to ≥ 3. Conclusion: The combination of Six Sigma and QGI enables early detection of errors, effective targeted improvement — especially for urea and creatinine — and demonstrates superior value and sustainability in the quality management of biochemical tests on the AU5800 analyzer.

Keywords

Six Sigma QGI Au5800

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© 2026 The Author(s). Published by Journal of Health and Aging.

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