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논문 기본 정보

자료유형
학술저널
저자정보
Nam Youngwon (Department of Laboratory Medicine Seoul National University College of Medicine Seoul KoreaDepartme) Lee Joon Hee (Department of Laboratory Medicine Seoul National University College of Medicine Seoul KoreaDepartme) Kim Sung Min (Department of Laboratory Medicine Seoul National University Bundang Hospital Seongnam Korea) Jun Sun-Hee (Department of Laboratory Medicine Seoul National University Bundang Hospital Seongnam Korea) Song Sang Hoon (Department of Laboratory Medicine Seoul National University College of Medicine Seoul KoreaDepartme) Lee Kyunghoon (Department of Laboratory Medicine Seoul National University College of Medicine Seoul KoreaDepartme) Song Junghan (Department of Laboratory Medicine Seoul National University College of Medicine Seoul KoreaDepartme)
저널정보
대한진단검사의학회 Annals of Laboratory Medicine Annals of Laboratory Medicine 제42권 제2호
발행연도
2022.3
수록면
150 - 159 (10page)
DOI
10.3343/alm.2022.42.2.150

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Background: Results from laboratories using multiple instruments should be standardized or harmonized and comparability-verified for consistent quality control. We developed a simple frequent comparability verification methodology applicable to large healthcare centers using multiple clinical chemistry instruments from different manufacturers. Methods: Comparability of five clinical chemistry instruments (Beckman Coulter AU5800, Abbott Architect Ci16000, two Siemens Vista 1500, and Ortho Vitros 5600) was evaluated from 2015 to 2019 for 12 clinical chemistry measurements. Pooled residual patient samples were used for weekly verifications. Results from any instrument exceeding the allowable verification range versus the results from the comparative instrument (AU5800) were reported to clinicians after being multiplied by conversion factors that were determined via a linear regression equation obtained from simplified comparison. Results: Over the five-year study period, 432 weekly inter-instrument comparability verification results were obtained. Approximately 58% of results were converted due to non-comparable verification. Expected average absolute percent bias and percentage of non-comparable results for non-converted and converted results after conversion action were much lower than those for data measured before conversion action. The inter-instrument CV for both non-converted and converted results after conversion action was much lower than that for measured data before conversion action for all analytes. Conclusions: We maintained within-laboratory comparability of clinical chemistry tests from multiple instruments for five years using frequent low-labor periodic comparability verification methods from pooled residual sera. This methodology is applicable to large testing facilities using multiple instruments.

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