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Annual Report on the External Quality Assessment Scheme for Clinical Chemistry in Korea (2014)
J Lab Med Qual Assur 2015;37:115-123
Published online September 30, 2015
© 2015 Korean Association of Quality Assurance for Clinical Laboratory.

Sun Hee Jun and Junghan Song, as Clinical Chemistry Subcommittee, The Korean Association of External Quality Assessment Service

Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
Correspondence to: Junghan Song
Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82 Gumiro 173beon-gil, Bundang-gu, Seongnam 13620, Korea Korea
Tel: +82-31-787-7691
Fax: +82-31-787-4015
E-mail: songjhcp@snu.ac.kr
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
The Clinical Chemistry subcommittee of The Korean Association of External Quality Assessment Service conducted external quality assessments in 2014. This included general chemistry and blood gas measurements as part of a scheme of six trials, comprising of three samples each. All control materials were sent at the same time. The overall response rates were 93.4% for general chemistry and 90.0% for blood gas. The parameters tested included sodium, potassium, chloride, blood urea nitrogen, glucose, calcium, phosphorus, uric acid, creatinine, bilirubin, total protein, albumin, total cholesterol, triglyceride, AST, ALT, alkaline phosphatase, lactate dehydrogenase, gamma glutamyl transferase, HDL cholesterol, and LDL cholesterol for general chemistry and pH, partial pressure of carbon dioxide, and partial pressure of oxygen for blood gas assessment. Two types of reports were generated, namely, a method summary report including mean, standard deviation, and coefficient of variation, for each test method, as well as a result summary report of each participating laboratory, including mean, standard deviation, number of peer groups, and standard deviation index and variance index scores of each laboratory. The overall quality performance in 2014 was similar to that of previous years and as compared to results from 2013, the inter-laboratory variation was lower. The requisite continual improvement in the quality of clinical chemistry testing can be achieved through participation in similar proficiency testing programs.
(J Lab Med Qual Assur 2015;37:115-123)
Keywords : Laboratory proficiency testing, Clinical chemistry
References
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