Application of Sigma Metrics for the Assessment and Modification of Quality Control in Clinical Chemistry Laboratory of Hospital for Tropical Diseases
Journal Title: Vajira Medical Journal: Journal of Urban Medicine - Year 2020, Vol 64, Issue 6
Abstract
Objective: This study aims to assess the quality control performance in clinical chemistry using sigma metrics and to compare sigma metrics after quality control improvements. Methods: This study collected %CV data from IQC and % Bias from the EQA results derived from performance evaluation using sigma metrics. The obtained data were used to identify the cause for tests with low-sigma metrics and to improve quality. All results were used to conduct comparative studies. Results: Twenty-five tests were used to improve the quality control using the sigma metrics. It was discovered that 19 tests before the quality control improvements were included in the world class performance (≥ 6-sigma) and excellent performance (≥ 5-sigma) criteria which can be used in the rules of 13s, (N = 2, R = 1) and 13s/22s, /R4s (N =2, R=1) respectively. After quality control improvement, tests with the world class and excellent performance was increased to 22 included; glucose, creatinine, uric acid, cholesterol, triglyceride, HDL, LDL, total protein, AST, ALT, ALP, CPK, LDH, amylase, GGT, magnesium, BUN, albumin, total bilirubin, calcium, phosphorous and potassium. There was only 1 test with <4-sigma, chloride, that was applied the maximum QC 13s / 2 of 32s / R4s / 31s / 8x (N = 2, R = 4) Conclusion: The Cobas 6000 automatic analyzer (model C501) at the Clinical Chemistry Laboratory of Tropical Medicine Hospital has an excellent diagnostic performance with a high level of six-sigma which makes it possible to choose the suitable quality control rules for testing programs. Beneficially, six-sigma provides cost saving, convenience, and easy to apply. Moreover, using sigma matric helped to reduce the clinical testing workload. However, laboratory worker must follow the all test items. In addition, the training program recognizing of six-sigma is important. Therefore, staff should have knowledge and competence to select quality control rules and interpret the control result.
Authors and Affiliations
Vimon Yanpanich, Chatnapa Duangdee, Jittima Kunsombat
Keywords
Related Articles
- EP ID EP723297
- DOI http://dx.doi.org/10.14456/vmj.2020.40
- Views 42
- Downloads 0
Rate and Predictors of Postoperative Respiratory Complications Following Adenotonsillectomy in Children with Obstructive Sleep Apnea
OBJECTIVE: This study aimed to determine the rate and risk factors of postoperative respiratory complications in children with obstructive sleep apnea (OSA) who underwent adenotonsillectomy. METHODS: A retrospective stu...
The Prevalence of parasitic infection and Health risk behaviors of Thai Buddhist monks in Wachira Phayaban Region, Dusit District, Bangkok Metropolitan
Objective: To determine the prevalence of parasitic infection and health risk behaviors among Buddhist monks Methods: Thirty-six stool samples were collected from monks from Wat Thewarat Kunchon Worawihan, Wat Ratchapha...
Physiologic and Other Effects of Silicone Mask Respirator N99 in the Coronavirus 2019 Outbreaks
Introduction: The coronavirus outbreak which has spread across the world resulting in a significant shortage of the N 95 type of medical mask. For this reason, the University of Navamindradhiraj jointly developed a medic...
Work Factors related to Sleep Quality among Professional Nurses in the Inpatient Department, Faculty of Medicine Vajira Hospital
Objective: To study sleep quality and work factors that affect sleep quality in professional nurses working in the inpatient units of Faculty of Medicine, Vajira Hospital. Methods: The cross-sectional descriptive study...
Clinical Characteristics and Outcomes of Acute Myeloid Leukemia in Vajira Hospital-a 9-year Single Center Retrospective Study
Objective: To collect demographic data, management patterns and outcomes of acute myeloid leukemia (AML) patients in a tertiary hospital. Methods: We collected data of newly diagnosed AML patients from 2008 to 2016, inc...