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) (19) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (16) Sample Type Blood (7) Serum or Plasma (9) Urine (3) Test Area Drugs of Abuse (1) Therapeutics (18) Test Category Antihypertensives (3) Diuretics (11) Vasodilators (5) 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.