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

Ray H. Liu, Chih-Hung Wu, Yi-Jun Chen, Chiung-Dan Chang, Jason G. Linville, Dennis V. Canfield

FAA Office of Aerospace Medicine - Civil Aerospace Medical Institute

关键词: True Negative;    Drug;    Equation;    Interpretation;    Interfernce;   

RP-ID  :  DOT/FAA/AM-07/23

美国|英语

来源: Federal Aviation Administration

【 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.�