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논문 기본 정보

자료유형
학술저널
저자정보
Jooyoung Cho (Yonsei University Wonju College of Medicine) Dong Hyun Lee (Yonsei University Wonju College of Medicine) Jisu Jeon (Yonsei University Wonju College of Medicine) John Hoon Rim (Yonsei University College of Medicine) Jong-Han Lee (Yonsei University Wonju College of Medicine) Juwon Kim (Yonsei University Wonju College of Medicine)
저널정보
대한임상검사정도관리협회 Journal of Laboratory Medicine And Quality Assurance Laboratory Medicine and Quality Assurance 제46권 제1호
발행연도
2024.3
수록면
43 - 54 (12page)
DOI
10.15263/jlmqa.2024.46.1.43

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초록· 키워드

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Background: This study implemented an external quality assessment (EQA) of serum protein electrophoresis (SPEP) and immunofixation electrophoresis/ immunotyping (IFE/IT) tests and aimed to present domestic guidelines regarding the interpretation report. Methods: We conducted the EQA of SPEP and IFE/IT tests similar to the proficiency testing (PT) program of the Korean Association of External Quality Assessment (KEQAS). We prepared four test samples by pooling residual serum specimens, according to the SPEP pattern, and the existence and isotype of monoclonal proteins. Each test sample was aliquoted and sent to 29 clinical laboratories, each laboratory conducted SPEP and IFE/IT tests and returned quantitative values and interpretation reports. Results: Variations in the quantitative values (g/dL) of each fraction and ratios (%) of each fraction to total protein were observed. The differences between the electrophoresis methods or manufacturers were not statistically significant. Of the four EQA samples, two samples had a monoclonal protein, and the presence and absence of monoclonal protein and isotypes were consistent in all participating institutions. However, there were statistically significant differences in the numerical values and ratios of monoclonal proteins between institutions. Conclusions: This study examined the possibility of SPEP and IFE/IT tests being included in the PT program of the KEQAS, and we identified what should be supplemented for future assessments. Furthermore, we have presented the guidelines regarding SPEP and IFE/IT tests in Korea for the first time, and further studies are required to establish the EQA programs and standardized guidelines.

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