Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (2) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) (-) Serum or Plasma (1) Test Area Therapeutics (1) Test Category Antihypertensives (1) Test Sub-Category Alkaloids (1) Alpha Blockers (1) Antibiotics (1) Anticholinergics (1) Benzodiazepines (2) Beta-2 Andrenergic Agonists (1) Beta Blockers (1) (-) Diuretics (1) NSAIDs (1) Opiates/Opioids (3) Other (14) Sulfonylureas (2) Tricyclic (1) Vasoconstrictors (1) Test Test Name 4540SP Triamterene, Serum/Plasma