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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/23773
Title: External quality assessment scheme in red blood cell serology: A 5-year experience in Thailand
Authors: Sasitorn Bejrachandra
Jariya Saipin
Oytip Nathalang
Usanee Siriboonrit
Ekaraj Rungroung
Sudjai Udee
Mahidol University
Phramongkutklao College of Medicine
Keywords: Medicine
Issue Date: 7-Apr-2006
Citation: Immunohematology. Vol.22, No.1 (2006), 1-5
Abstract: From 2000 to 2004, 36, 58, 72, 78, and 86 laboratories participated in an external quality assessment scheme (EQAS) organized by the Department of Transfusion Medicine, Faculty of Medicine Siriraj Hospital. Each year the staff was requested to perform ABO grouping, D typing, antibody screening, antibody identification, and DATs on eight blood samples. Each participant received information on the correct test results and a coded summary. Regarding ABO grouping, the error rate ranged from 0.3 to 1.3 percent, mostly due to human errors. Error rates in D typing ranged from 0.7 to 5.7 percent, the most problematic being weak D phenotype interpretation. Although every sample was negative by the DAT, error rates due to false positive test results were determined to be 0.4 to 2.1 percent. Antibody screening errors were also found; however, errors steadily decreased from 4.2 percent in 2000 to 0.3 percent in 2004. Only 69.4 to 87.2 percent of laboratories performed antibody identification; however, correct results increased from 78.4 to 91.0 percent. In conclusion, an EQAS in RBC serology should be used to compare results from different laboratories and to identify those laboratories that need improvement in testing procedures.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33645473952&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/23773
ISSN: 0894203X
Appears in Collections:Scopus 2006-2010

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