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) (-) Serum or Plasma (2) Urine (1) Test Area Therapeutics (2) Test Category Antiparkinsons (2) Test Sub-Category (-) Anticholinergics (1) (-) Dopamine Antagonists (1) Other (3) Parkinsons (1) Test Test Name 4115SP Ropinirole, Serum/Plasma 4680SP Trihexyphenidyl, Serum/Plasma