The Fentanyl (FYL) Rapid Test Device is intended for the qualitative detection of Fentanyl in human saliva at cut-off concentrations of 1/5/10/30 ng/ml. It serves as an initial screening tool for use in various settings where monitoring for illicit fentanyl exposure is critical. These applications include law enforcement operations (especially for roadside drug driving checks and overdose investigations), workplace safety programs, substance abuse rehabilitation centers, emergency medical response, and other public health surveillance scenarios. Given the high potency and significant public health risk associated with fentanyl and its analogs, this rapid test provides a vital preliminary result. It is important to emphasize that this assay provides only a preliminary analytical result. A more specific confirmatory method, such as gas chromatography/mass spectrometry (GC/MS), must be used to obtain a confirmed analytical result, especially for legal or definitive medical conclusions. Professional judgment is essential when interpreting any result.
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