Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Serum or Plasma (4) Urine (1) Test Area Therapeutics (7) Test Category (-) Antiparkinsons (6) (-) Dopamine Precursor (1) Drugs of Abuse (3) Therapeutics (6) Test Sub-Category Anticholinergics (3) Dopamine Antagonists (2) Other (1) Parkinsons (1) Your search has returned no tests.