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Published: 2026-03-02
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DOI: https://doi.org/10.52163/yhc.v67i2.4347
Issue
Vol. 67 No. 2
Section
Articles
How to Cite
Huệ, N. T. K., Phương, N. T. H., Anh, N. T. H., Huyền, H. H., Trung, N. T., Huy, N. T., & Lâm, T. T. (2026). APPLICATION OF THE SIX-SIGMA METHOD IN QUALITY CONTROL OF PERIPHERAL BLOOD CELL ANALYSIS ON THE DXH 690T MACHINE AT THE LABORATORY DEPARTMENT – VINMEC SMART CITY INTERNATIONAL GENERAL HOSPITAL. Vietnam Journal of Community Medicine, 67(2). https://doi.org/10.52163/yhc.v67i2.4347

APPLICATION OF THE SIX-SIGMA METHOD IN QUALITY CONTROL OF PERIPHERAL BLOOD CELL ANALYSIS ON THE DXH 690T MACHINE AT THE LABORATORY DEPARTMENT – VINMEC SMART CITY INTERNATIONAL GENERAL HOSPITAL

Nguyen Thi Kim Hue1, Nguyen Thi Hoai Phuong1, Nguyen Thi Hong Anh1, Hoang Huong Huyen1, Nguyen Tu Trung1, Nguyen Thi Huy1, Tran Thanh Lam2
1 Laboratory Department, Vinmec Smart City International General Hospital
2 Laboratory Department, Vinmec Times City International General Hospital

Main Article Content

Abstract

Objectives: Assess the analytical performance of several peripheral blood cell indices on the DxH 690T system using the Six Sigma method.


Method: Cross-sectional descriptive study of White Blood Cell count (WBC), Red Blood Cell count (RBC), Hemoglobin (HGB), and Platelet count (PLT) indices from October 2024 to March 2025 at the Department of Laboratory Medicine of Vinmec Smart City International Hospital.


Results: Based on Sigma values, the quality of the indices is classified as follows: 9 indices have excellent quality, accounting for 75%. There is 1 index with good quality, accounting for 8.3%, and 2 indices with acceptable quality, both accounting for 16.7%.


Conclusion: The Six Sigma method is a valuable tool in laboratory quality management, enabling laboratories to assess analytical performance and improve testing quality.

Article Details

Keywords

Six Sigma, DxH 690T, Hematology, Quality management

References

[1] Rohr UP, Binder C, Dieterle T, et al. The Value of In Vitro Diagnostic Testing in Medical Practice: A Status Report. PLoS One. 2016;11(3):e0149856. doi:10.1371/journal.pone.0149856
[2] Westgard S, Bayat H, Westgard JO. Special issue on Six Sigma metrics - experiences and recommendations. Biochem Med. 2018;28(2):0-0. doi:10.11613/BM.2018.020301
[3] Coskun A, Unsal I, Serteser M, Inal T. Six Sigma as a Quality Management Tool: Evaluation of Performance in Laboratory Medicine. In: ; 2010. doi:10.5772/9928
[4] PGS.TS.BS Đặng Thị Ngọc Dung. Tổ Chức và Quản Lý Phòng Xét Nghiệm.
[5] Desirable Biological Variation Database specifications - Westgard QC. Accessed September 21, 2025. https://westgard.com/clia-a-quality/quality-requirements/biodatabase1.html
[6] Westgard JO, Westgard SA. Quality control review: implementing a scientifically based quality control system. Ann Clin Biochem. 2016;53(1):32-50. doi:10.1177/0004563215597248
[7] Nguyễn Quang Tùng, Lê Thị Lết. Ứng dụng Six-sigma trong kiểm tra chất lượng máy đếm tế bào Advia120 tại Bệnh viện Đại học Y Hà Nội. Published online 2015.
[8] Dereje Mengesha Berta. Analytical Performance Evaluation of Hematology Analyzer Using Various TEa Sources and Sigma Metrics.
[9] Hà Văn Phú. Ứng dụng phương pháp Six-sigma đánh giá chất lượng xét nghiệm khâu phân tích và các yếu tố ảnh hưởng tại Khoa Xét nghiệm Huyết học Bệnh viện Hữu Nghị Việt Đức năm 2018. Published online 2018.
[10]