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) Fluid (1) (-) Serum or Plasma (1) Test Area Therapeutics (1) Test Category (-) Antihypertensives (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) (-) Beta Blockers (1) Diuretics (3) Other (1) Vasodilators (1) Test Test Name 2488SP Labetalol, Serum/Plasma