The Human Fentanyl Test Kit is intended for the determination of trace quantities of Fentanyl and/or other metabolites in human urine, blood, oral fluid. Creative Diagnostics's Fentanyl ELISA (Enzyme-Linked ImmunoSorbent Assay) test kit is a qualitative one-step kit designed for use as a screening device for the detection of drugs and/or their metabolites. The kit was designed for screening purposes and is intended for forensic use only. It is recommended that all suspect samples be confirmed by a quantitative method such as gas chromatography/mass spectrometry (GC/MS).