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 (4) Serum or Plasma (4) (-) Urine (2) Test Area Therapeutics (2) Test Category Anesthetics (1) (-) Antacids (1) Antipsychotics (1) Metals/Elements (1) (-) Sedative/Hypnotics (1) Test Sub-Category Antihistamines (1) Other (1) Test Test Name 4085U Ranitidine, Urine 4086U Ramelteon and Metabolite, Urine