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) (-) Serum or Plasma (1) Test Area Therapeutics (1) Test Category Antihypertensives (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Alpha/Beta Adrenergic Agonists (1) Alpha Blockers (1) Antibiotics (2) Antihistamines (1) Benzodiazepines (5) Calcium Channel Blockers (1) Cannabinoids (2) Cardiac Glycosides (1) Cocaine (3) Designer Benzodiazepines (2) (-) Diuretics (1) Herbicides (1) NSAIDs (2) Opiates/Opioids (1) Other (16) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Stimulants (1) Sulfonylureas (1) Synthetic Cathinone (1) Thiazides (1) Test Test Name 1250SP Chlorthalidone, Serum/Plasma