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) (-) Urine (1) Test Area Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category (-) Alpha-2 Adrenergic Agonists (2) Antihistamines (3) Antimalarials (2) Benzodiazepines (9) Cannabinoids (6) CNS Stimulants (2) Cocaine (6) Designer Benzodiazepines (2) Diuretics (1) Macrominerals (2) NSAIDs (1) Opiates/Opioids (3) Other (49) Phenothiazines (5) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Toxic Elements (4) Trace Elements (8) Tricyclic (5) Test Test Name 1275B Clonidine, Blood 1275U Clonidine, Urine