Six SIGMA evaluation of 17 biochemistry parameters using bias calculated from internal quality control and external quality assurance data Procena 17 biohemijskih parametara metodom Six SIGMA na osnovu korišćenja i podataka unutrašnje i spoljašnje kontrole kvaliteta

Abstract

Clinical laboratories are constantly making great efforts to produce more efficient and reliable results. Quality control plays a vital role in the laboratory’s ability to produce accurate test results, and it has been a component of laboratory medicine for more than 50 years. While the first quality control methods were designed to detect errors visually, in the 1930s, Shewhart and his colleagues pioneered statistical analysis in the control process. Then, Levey and Jennings charts, Westgard multiple rules, and Sigma metric are successfully added to quality control management. Using statistic