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KMID : 0985420150370020047
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Laboratory Medicine and Quality Assurance
2015 Volume.37 No. 2 p.47 ~ p.55
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Annual Report on the External Quality Assessment Scheme for Blood Blank Tests in Korea (2014)
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Lim Young-Ae
Oh Jin-Sook
Kwon Seog-Woon
Kwon Kye-Chul
Kim Sin-Young
Park Kyoung-Un
Park Hyun-Jun
Song Woon-Heung
Cho Duck
Um Tae-Hyun
Lee Mi-Kyung
Han Sang-Moo
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Abstract
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We report here the results of surveys on external quality assessment (EQA) of blood bank tests in Korea carried out in 2014. The profi ciency testing specimens were prepared at Ajou University Hospital and the response rates for the 1st and 2nd trials were 94.3% (537/549) and 96.0% (545/554), respectively. No answers were considered incorrect, and the average accuracy rates of six different test items on the regular survey were as follows: ABO grouping, 98.5% to 100.0%; RhD typing, 98.1% to 99.4%; crossmatching, 91.2% to 99.6%; direct antiglobulin test (DAT) using a polyspecific reagent, 96.7% to 98.4%; DAT using an immunoglobulin-G monospecific reagent, 93.8% to 98.7%; DAT using a C3d monospecific reagent, 89.5% to 98.7%; unexpected antibody screening test, 96.2% to 100.0%; and antibody identification test, 69.8% to 100.0%. Test items for the pilot survey were reactivities to anti-A1 and anti-H, Rh subgrouping, and ABO antibody titration. Except for the result of the antibody identification test for specimens with multiple antibodies, we obtained excellent survey results for the EQA of blood bank tests carried out in 2014. In addition, the number of participating institutes was higher in 2014 than in 2013. The EQA of blood bank tests in 2014 should be helpful for improving the quality of the participating laboratories.
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KEYWORD
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Blood banks, Laboratory proficiency testing
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