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) (3) Sample Type (-) Blood (2) Serum or Plasma (2) (-) Urine (1) Test Area Therapeutics (3) Test Category Antacids (2) Antiparkinsons (1) Test Sub-Category (-) Antihistamines (2) Cannabinoids (1) (-) Dopamine Antagonists (1) Other (9) Toxic Elements (2) Test Test Name 4085B Ranitidine, Blood 4085U Ranitidine, Urine 4115B Ropinirole, Blood