Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (7) Enzyme-Linked Immunosorbent Assay (ELISA) (26) Enzyme Immunoassay (EIA) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (14) Headspace Gas Chromatography (GC) (17) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (20) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (16) Sample Type Blood (8) Serum or Plasma (10) Urine (2) Test Area Drugs of Abuse (1) Therapeutics (19) Test Category Antihypertensives (6) Diuretics (11) Vasodilators (3) Test Sub-Category Alpha-2 Adrenergic Agonists (6) Alpha-2 Adrenergic Antagonists (3) (-) Alpha Blockers (6) Beta Blockers (28) Calcium Channel Blockers (7) Diuretics (13) (-) Other (14) Thiazides (2) Your search has returned no tests.