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KMID : 0387720140250010041
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Korean Journal of Blood Transfusion
2014 Volume.25 No. 1 p.41 ~ p.52
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Report on External Proficiency Testing for the ABO and D Blood Typing in Blood Centers in 2012 and 2013
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Lim Young-Ae
Choi Young-Sill
Kim Hyun-Ok
Lee Dong-Han
Jang Choong-Hoon
Lee Mi-Nam
Kwon Jeong-Ran
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Abstract
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Background: It was reported that a continuous education program and external proficiency testing (PT) for blood grouping test (BGT) might be necessary because some blood centers of medical institutions could not correctly examine ABO subtype and D variant, according to the results of the first year project in 2011. Therefore, the results of PT for BGT in blood centers in 2012 and 2013 were compared to those in 2011 in order to assess the impact of projects during a period of three years and to help in planning the future PT for BGT.
Methods: Whole blood survey samples composed of three panels for ABO grouping and three panels for D typing were sent to 74 and 71 institutes in 2012 and 2013, respectively. Evaluation criteria for BGT were as follows: ‘Good’ for the answers matched with intended results, ‘Acceptable’ for the correct answers other than that of ‘Good’, and ‘Unacceptable’ for the answers other than those of ‘Good+acceptable’ as correct answers.
Results:The answer rates of ‘Unacceptable’ for ABO subtype were 1.4% in 2012 and 4.2% in 2013. However, the answer rate of ‘Good’ increased from 44.6% in 2012 to 83.1% in 2013. The answer rate of ‘Unacceptable’ for D variants showed a marked decrease, from 16.2% in 2012 to 1.4% in 2013.
Conclusion: Projects for PT for BGT during a period of three years have improved laboratory quality in blood centers. However, the acquisition and change of the materials for PT would be necessary in order to continuously and practically provide help to blood centers
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KEYWORD
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External proficiency testing, ABO grouping, D typing, Blood center
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