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) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) (-) Serum or Plasma (2) Urine (1) Test Area (-) Therapeutics (2) Test Category Analgesics (4) Anticholinergics (1) Antihistamines (1) (-) Antihypertensives (2) Antimicrobials (1) Antipsychotics (2) Hypoglycemic Agents (1) Test Sub-Category Diuretics (1) Vasodilators (1) Test Test Name 2308SP Hydralazine, Serum/Plasma 2330SP Hydrochlorothiazide, Serum/Plasma