Abstract
Background: Laboratory tests consist of three phases: Pre-analytical, Analytical, and Post-analytical. Recent studies indicate that errors in the pre-analytical phase account for a significant proportion up to 70% of the entire process. Therefore, monitoring and evaluating quality in the pre-analytical stage is very important, necessary and must be strictly implemented to improve the efficiency of laboratory management. One of the effective tools to reflect the quality of testing is the sigma value because it represents the performance of the laboratory.
Method: Cross-sectional analytical research, with quality indicators collected over the period from July to September 2023. Quality Indicators include: Samples with insufficient sample volume; Hemolyzed samples; Incorrect anticoagulant sample; Incorrect information samples.
Results: Hemolyzed samples constitute the most significant proportion of pre-analytical errors, representing 54.6% of all errors. This is followed by amples with insufficient sample volume at 44.1%, and then by errors in patient information and anticoagulant selection, both contributing a mere 0.65%.
Conclusion: All pre-analytical quality indicators measured by the Six Sigma scale achieved good levels or above.
Published | 2025-09-30 | |
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Issue | Vol. 15 No. 5 (2025) | |
Section | Original Articles | |
DOI | 10.34071/jmp.2025.5.3 | |
Keywords | tiền phân tích, Six Sigma, chỉ số chất lượng : pre-analytical, Six Sigma, quality indicators |

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Najat D. Prevalence of pre-analytical errors in clinical chemistry diagnostic labs in Sulaimani city of Iraqi Kurdistan. PLoS One. 2017;12(1):e0170211.
Das S, Chaudhary N, Raju K. Analysis of the Six Sigma principle in pre-analytical quality for hematological specimens. Cureus. 2023;15(7):e42771.
Cornes MP, Atherton J, Pourmahram G, Borthwick H, Kyle B, West J, et al. Monitoring and reporting of preanalytical errors in laboratory medicine: the UK situation. Ann Clin Biochem. 2016;53(2):279-84.
Đánh giá chất lượng tiền phân tích các xét nghiệm sinh hóa tại Bệnh viện Đại học Y Dược thành phố Hồ Chí Minh. Tap Chi Y Hoc Viet Nam. 2022;516(Spec No Jul):3.
Kulkarni S, Ramesh R, Srinivasan AR, Silvia CWD. Evaluation of preanalytical quality indicators by Six Sigma and Pareto’s principle. Indian J Clin Biochem. 2018;33:102-7.
Begum F. A study of pre-analytical errors in a hospital based clinical biochemistry laboratory and formulation of measures for correction. 2014;758:6-18.