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 (1) Serum or Plasma (1) Urine (1) Test Area Exposure (5) (-) Therapeutics (1) Test Category Sympathomimetic Amines (1) Test Sub-Category Alkaloids (1) Alpha Blockers (1) Antibiotics (1) Anticholinergics (1) Barbiturates (4) Benzodiazepines (2) Beta Blockers (1) Diuretics (1) NSAIDs (1) Opiates/Opioids (3) Other (18) Phenothiazines (3) Tricyclic (3) (-) Vasoconstrictors (1) Test Test Name 4350B Tetrahydrozoline, Blood