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) (3) Enzyme Immunoassay (EIA) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (4) Headspace Gas Chromatography (GC) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (5) (-) Fluid (1) Serum or Plasma (6) (-) Tissue (1) (-) Urine (3) Test Area Drugs of Abuse (1) Postmortem (3) Therapeutics (1) Test Category Antiparkinsons (1) Drugs of Abuse (1) Therapeutics (3) Test Sub-Category Anticholinergics (1) Other (4) Your search has returned no tests.