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논문 기본 정보

자료유형
학술저널
저자정보
Jongwon Oh (Department of Laboratory Medicine and Genetics Samsung Medical Center Sungkyunkwan University Schoo) Hyung-Doo Park (Department of Laboratory Medicine and Genetics Samsung Medical Center Sungkyunkwan University Schoo)
저널정보
대한임상검사정도관리협회 Journal of Laboratory Medicine And Quality Assurance Journal of Laboratory Medicine And Quality Assurance Vol.41 No.2
발행연도
2019.1
수록면
105 - 110 (6page)

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Background: Rheumatoid factor (RF) is used as one of the diagnostic criteria for rheumatoid arthritis. The purpose of this study was to evaluate qualitative RF reagents used in clinical laboratories in Korea, and to provide basic data that can be used as a reference to improve the quality of RF testing. Methods: We reviewed the proficiency testing results for RF from the Korean Association of External Quality Assessment Service (KEQAS) and College of American Pathologists. Moreover, we evaluated five commercially available RF qualitative reagents, including LabSlide RF (IVD Lab Co., Korea), ASAN RA Latex Reagents (Asan Pharmaceuticals Co., Korea), RaPET RF (Stanbio Laboratory, USA), RF Latex Test (Pulse Scientific Inc., Canada), and RF-100 (Teco Diagnostics, USA). Commercially available quality control materials, calibrators, and pooled sera were used in this study. The consistency of qualitative reagents and Kappa statistics were calculated based on the quantitative values of the quality control materials and the mixed sera. Results: Up to 51.5% of high concentration samples were reported as negative in KEQAS. RF qualitative reagent test results were not consistent among reagent types. The consistency of the qualitative and quantitative test results was between 51% and 100%, and the kappa statistics varied depending on the reagent manufacturer. Conclusions: Measurement of RF qualitative reagents used in domestic clinical laboratories was not consistent with the quantitative values, and hence it is necessary to improve the consistency and verify the adequacy of the cut-off value.

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