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) (1) Enzyme-Linked Immunosorbent Assay (ELISA) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (3) Fluid (1) (-) Serum or Plasma (3) (-) Tissue (1) Urine (2) Test Area Drugs of Abuse (1) Postmortem (2) Therapeutics (1) Test Category Antiparkinsons (1) Drugs of Abuse (1) Therapeutics (2) Test Sub-Category Anticholinergics (1) Dopamine Antagonists (1) (-) Other (4) Parkinsons (1) Your search has returned no tests.