Evaluation of Sigma-Metric and Application of Quality Tools in Clinical Laboratory of a Tertiary Care Hospital     

Puja kumari Jha  Nirupama Sharma  Juhee Chandra  Rachna Agarwal 《Indian journal of clinical biochemistry : IJCB》2021,36(3):337

Variability in analytical performance of some analyte indicated the need of evaluation of quality plan of our laboratory. We tried to put the same degree of effort into our quality metrics as we put into the laboratory processes themselves. Application of six sigma methodologies improve the quality by focusing on the root causes of the problems in performance and analyzing by flowcharts, fishbone diagrams and other quality tools. Sigma metric was calculated for laboratory parameters for a period of 8 months during 2018–19. The analytes with poor sigma metric were free Thyroxine (FT3, FT4), Sodium, Calcium and Magnesium. Sigma metric of free Thyroxine (FT3, FT4), Sodium, Calcium and Magnesium were below 3. A road map for process improvement was designed with DMAIC (Define-Measure-Analyze-Improve-Control) model to solve the issue. Possible causes for low analytical performance of the particular analytes were depicted in Fishbone diagram. The Fishbone analysis identified the water quality issues with electrolyte analysis while high ambient temperature was culprit for poor assay performance of free Thyroxine. Sigma metric of the analytical performance was assessed once again after root cause analysis. Sigmametric showed marked improvement in control phase. Identification of problems led to reduction in non value added work leading to adequate resource utilization by addressing the priority issue. Therefore, DMAIC tool with Fish bone model analysis can be recommended as a well suited method for troubleshooting in poor performance of laboratory parameter.  相似文献   

Correction to: Problem-based gaming via an augmented reality mobile game and a printed game in foreign language education     

Lee  Juhee 《Education and Information Technologies》2021,26(3):3027-3031

Education and Information Technologies - A Correction to this paper has been published: https://doi.org/10.1007/s10639-020-10409-8  相似文献   

Effects of linguistic and affective variables on middle school students’ writing performance in the context of English as a foreign language: an approach using structural equation modeling     

Lee  Juhee 《Reading and writing》2020,33(5):1235-1262

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