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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/27603
Title: Improvement of coagulation laboratory practice in Thailand the first-year experience of the national external quality assessment scheme for blood coagulation
Authors: Panutsaya Tientadakul
Nisarat Opartkiattikul
Wanida Wongtiraporn
Mahidol University
Keywords: Health Professions;Medicine
Issue Date: 1-Jan-2009
Citation: Archives of Pathology and Laboratory Medicine. Vol.133, No.1 (2009), 72-77
Abstract: Context.-In Thailand until 2005 there had been no external quality assessment scheme at the national level for blood coagulation tests. Only a few laboratories had an external quality assessment for these tests. In the year 2005, the Thailand National External Quality Assessment Scheme for Blood Coagulation was founded. Objectives.-To describe the establishment of the Thailand National External Quality Assessment Scheme for Blood Coagulation (including problems encountered and solutions), its progression and expansion, and the improvement of coagulation laboratory practice in Thailand during 2 trial surveys and 4 formal surveys conducted in the first 11/2 years. Design.-Between 2005 and 2006, the external quality assessment samples for prothrombin time/international normalized ratio and activated partial thromboplastin time were distributed to the participants as well as the instructions and suggestions for the improvement of laboratory practice. From the data collected, the all-method coefficient of variation of the international normalized ratio and activated partial thromboplastin time was calculated for each survey. Result.-The number of participants increased during the first 11/2 years that the surveys were conducted, from 109 to 127. Survey data demonstrate an improvement in response rate and an increase in the number of laboratories that determine their own reference ranges and repeat this for every change of reagent lot, using the appropriate anticoagulant. The increased precision of tests is indicated by the decrease of the all-method coefficient of variation of the international normalized ratio and activated partial thromboplastin time. Examples of individual laboratory improvement through feedback are also described. Conclusions.-The improvement of coagulation laboratory practice both through the instructions provided and liaison with participants was observed during the course of this scheme.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=58349087698&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/27603
ISSN: 15432165
00039985
Appears in Collections:Scopus 2006-2010

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