Intensity of the Internal Standard as the Basis for Reporting a Test Specimen as Negative or Inconclusive

[摘要] Under normal circumstances, a test specimen is reported as �negative� when the response of the analyte is absent. However, if the intensity of the internal standard (IS) is low, indicating interference factors, the test could be considered �inconclusive.�

[发布机构] FAA Office of Aerospace Medicine - Civil Aerospace Medical Institute

[关键词] True Negative;Drug;Equation;Interpretation;Interfernce