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) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Drugs of Abuse (6) (-) Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category Alpha-2 Adrenergic Agonists (3) Alpha/Beta Adrenergic Agonists (3) Alpha Blockers (2) Antibiotics (2) Antihistamines (4) Antimalarials (3) Antiplatelet Agents (2) Antipyretics (1) Appetite Suppressants (3) Benzodiazepines (17) Biomarkers (1) Calcium Channel Blockers (3) Cannabinoids (1) Cardiac Glycosides (5) (-) Diuretics (2) NSAIDs (4) Opiates/Opioids (1) Other (77) Phenothiazines (5) Selective Serotonin Reuptake Inhibitors (SSRI) (10) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) Sulfonylureas (1) Thiazides (2) Tricyclic (8) Test Test Name 1250B Chlorthalidone, Blood 1250SP Chlorthalidone, Serum/Plasma