title: Evaluation of the Keystone Diagnostics Quik Test using previously screened urine specimens.
abstract: Urine specimens confirmed positive or negative for cocaine, phencyclidine, morphine, and amphetamines by thin-layer chromatography and gas chromatography/mass spectrometry were used in a blind study to evaluate the KDI Quik Test drug screen. Of 10 positive specimens, the KDI Quik Test found 6 to be positive, and of 10 negative specimens, it found 3 positive. In a study of interference, 4 of 10 specimens containing commonly used medications but no cocaine, phencyclidine, morphine, and amphetamine were found positive for the drugs of abuse by the KDI Quik Test.
authors.affiliation: American Medical Laboratories, Fairfax, Virginia 22030.
authors.forename: S
authors.initials: S
authors.lastname: Bogema
authors.forename: R
authors.initials: R
authors.lastname: Schwartz
authors.forename: I
authors.initials: I
authors.lastname: Godwin
mesh_terms: D000662:Amphetamines / Q000652:urine*; D002855:Chromatography, Thin Layer / Q000379:methods; D003042:Cocaine / Q000652:urine*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006801:Humans; D009020:Morphine / Q000652:urine*; D010622:Phencyclidine / Q000652:urine*; D011934:Reagent Strips
chemical_list: D000662:Amphetamines; D011934:Reagent Strips; D009020:Morphine; D003042:Cocaine; D010622:Phencyclidine