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KMID : 0387720070180030169
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Korean Journal of Blood Transfusion
2007 Volume.18 No. 3 p.169 ~ p.176
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The Effect of Number of Reagent Red Cells on the Antibody Screening and Identification.
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Park Jeong-Su
Chang Ho-Eun
Kim Mi-Jung
Song Sang-Hoon
Park Kyoung-Un
Song Jung-Han
Han Kyou-Sup
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Abstract
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Background: The number of reagent red cells has an effect on the results of an unexpected antibody screening test. We evaluated the effect of the number of reagent red cells on antibody screening and identification using test panels of a DG Gel (Diagnostic Grifols, Barcelona, Spain).
Methods: A total of 310 samples were tested in parallel using SeraScan Diana 2 and SeraScan Diana 4 (Diagnostic Grifols, Barcelona, Spain) and ID-DiaCell (DiaMed, Cressier, Morat, Switzerland). Positive samples as determined by the use of SeraScan and ID-DiaCell were identified on an ID-Dia panel (DiaMed), Identisera Diana and Identisera Extend (Diagnostic Grifolsn).
Results: Among the 310 samples, 54, 59 and 59 samples were determined as antibody positive by the use of SeraScan Diana 2, SeraScan Diana 4 and ID-DiaCell, respectively. Unexpected antibodies were identified in 10/59 samples (17%) by the use of SeraScan Diana 4, and were identified in 34/59 samples (57.6%) by the combined use of SeraScan Diana 2 and SeraScan Diana 4. Identification of unexpected antibodies by the use of Identisera Diana or Identisera Extend was not different.
Conclusion: When the results of SeraScan Diana 2 and SeraScan Diana 4 are integrated, unexpected antibodies could be identified in 57.6% of the screening-positive samples. Therefore, if the number of reagent red cells is increased, some antibodies can be identified by antibody screening tests, and the results can be used to validate those of antibody identification tests.
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KEYWORD
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Unexpected antibody, Antibody screening, Antibody identification, DG gel
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