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) (1) Sample Type Blood (3) Fluid (3) Serum or Plasma (3) Tissue (2) (-) Urine (1) Test Area Therapeutics (1) Test Category Antianxiety (1) Test Sub-Category Alkaloids (2) Antipyretics (1) Antivirals (1) (-) Benzodiazepines (1) Beta Blockers (1) Carbonic Anhydrase Inhibitors (1) Opiates/Opioids (2) Other (4) Test Test Name 8646U Alprazolam and Metabolite, Urine