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 Immunoassay (EIA) (1) (-) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) Sample Type Blood (2) Serum or Plasma (1) (-) Urine (1) Test Area Test Category Test Sub-Category Test Test Name 2321U Hydrocarbon and Oxygenated Volatiles Panel, Urine