Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (2) Enzyme-Linked Immunosorbent Assay (ELISA) (5) (-) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (5) Headspace Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (33) Sample Type Urine (1) Test Area Test Category Test Sub-Category Test Test Name 9343U Heroin Screen, Urine