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 (-) Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category Alpha-2 Adrenergic Agonists (3) Antibiotics (1) Anticoagulants (1) Antihistamines (4) Antimalarials (3) Benzodiazepines (16) Cannabinoids (1) Carbamates (1) CNS Stimulants (4) Cocaine (1) (-) Diuretics (2) NSAIDs (2) Opiates/Opioids (4) Other (81) Phenothiazines (9) Selective Serotonin Reuptake Inhibitors (SSRI) (5) Sulfonylureas (1) Toxic Elements (11) Trace Elements (27) Tricyclic (9) Test Test Name 1250B Chlorthalidone, Blood 1250SP Chlorthalidone, Serum/Plasma