대한임상검사과학회지 (Korean Journal of Clinical Laboratory Science)
- 제36권1호
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- Pages.13-18
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- 2004
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- 1738-3544(pISSN)
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- 2288-1662(eISSN)
약물검사에서 관리시료의 농축을 이용한 보고 가능 범위의 설정에 대한 연구
A Study of Reportable Range Setting through Concentrated Control Sample
- 장상우 (녹십자의료재단 고객지원 및 QA) ;
- 김남용 (녹십자의료재단) ;
- 최호성 (녹십자의료재단) ;
- 박용원 (녹십자의료재단 임상화학검사실) ;
- 윤근영 (녹십자의료재단 임상화학검사실)
- Chang, Sang Wu (Technical Information & QA Division, Green Cross Reference Laboratories) ;
- Kim, Nam Yong (Green Cross Reference Laboratories) ;
- Choi, Ho Sung (Green Cross Reference Laboratories) ;
- Park, Yong Won (Clinical Chemistry Dept., Green Cross Reference Laboratories) ;
- Yun, Keun Young (Clinical Chemistry Dept., Green Cross Reference Laboratories)
- 발행 : 2004.06.30
초록
This study was designed to establish working range for reoportable range in own laboratory in order to cover the upper and lower limits of the range in test method. We experimented ten times during 10 days for setting of reportable range with between run for method evaluation. It is generally assumed that the analytical method produces a linear response and that the test results between those upper and lower limits are then reportable. CLIA recommends that laboratories verify the reportable range of all moderate and high complexity tests. The Clinical Laboratory Improvement Amendments(CLIA) and Laboratory Accreditation Program of the Korean Society for Laboratory Medicine states reportable range is only required for "modified" moderately complex tests. Linearity requirements have been eliminated from the CLIA regulations and from others accreditation agencies, many inspectors continue to feel that linearity studies are a part of good lab practice and should be encouraged. It is important to assess the useful reportable range of a laboratory method, i.e., the lowest and highest test results that are reliable and can be reported. Manufacturers make claims for the reportable range of their methods by stating the upper and lower limits of the range. Instrument manufacturers state an operating range and a reportable range. The commercial linearity material can be used to verify this range, if it adequately covers the stated linear interval. CLIA requirements for quality control, must demonstrate that, prior to reporting patient test results, it can obtain the performance specifications for accuracy, precision, and reportable range of patient test results, comparable to those established by the manufacturer. If applicable, the laboratory must also verify the reportable range of patient test results. The reportable range of patient test results is the range of test result values over which the laboratory can establish or verify the accuracy of the instrument, kit or test system measurement response. We need to define the usable reportable range of the method so that the experiments can be properly planned and valid data can be collected. The reportable range is usually defined as the range where the analytical response of the method is linear with respect to the concentration of the analyte being measured. In conclusion, experimental results on reportable range using concentrated control sample and zero calibrators covering from highest to lowest range were salicylate
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