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) Urine (1) Test Area Therapeutics (1) Test Category Antihypertensives (1) Test Sub-Category (-) Alpha-2 Adrenergic Agonists (1) Antibiotics (1) Anticoagulants (1) Antihistamines (1) Benzodiazepines (4) Cannabinoids (6) Carbamates (1) CNS Stimulants (1) Cocaine (5) Designer Benzodiazepines (1) Diuretics (1) NSAIDs (1) Opiates/Opioids (1) Other (23) Phenothiazines (2) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Sulfonylureas (1) Toxic Elements (3) Trace Elements (7) Tricyclic (3) Test Test Name 1275SP Clonidine, Serum/Plasma