ÁP DỤNG THANG SIGMA TRONG ĐÁNH GIÁ HIỆU NĂNG PHƯƠNG PHÁP GIAI ĐOẠN TRONG XÉT NGHIỆM

Abstract

Objective: To assess a laboratory’s performance in analytic phase using Six Sigma. Subjects and Methods: All internal quality control (IQC) and external quality assessment (EQA) data of Glucose, Urea, Creatinine, GOT, and GPT tests in six months from 04/2021 to 09/2021 at Luc Ngan district medical clinic’s laboratory were gathered. The statistical parameters employed in this study included precision, trueness, and method performance with respect to Six Sigma score level based on 02 different databases (Biological variation and US CLIA’s guideline). Results: Most of the tests had sigma >3 at both IQC levels except for Urea test. GOT and GPT tests at IQC level 2 achieved World-class sigma level. Conclusion: The laboratory performed method performance evaluation using the six sigma method. All laboratories can use their sigma data as guideline for appropriate quality control strategy and IQC frequency.