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) (2) Sample Type (-) Blood (2) Serum or Plasma (2) Urine (1) Test Area (-) Therapeutics (2) Test Category Antacids (1) Antiparkinsons (1) Test Sub-Category (-) Antihistamines (1) (-) Dopamine Antagonists (1) Other (6) Test Test Name 4085B Ranitidine, Blood 4115B Ropinirole, Blood