Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Fluid (1) Liquid (1) Serum or Plasma (2) Tissue (1) Urine (2) Test Area Exposure (1) Therapeutics (1) Test Category Cholinesterase Inhibitors (1) Depressants (1) (-) Expectorants (1) Sedative/Hypnotics (2) (-) Solvents (1) Test Sub-Category (-) Other (2) Test Test Name 2165B Glycols Panel, Blood 2185B Guaifenesin, Blood