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 (7) Serum or Plasma (6) (-) Urine (2) Test Area Therapeutics (2) Test Category Analgesics (1) Antacids (1) Antianxiety (3) Anticholinergics (1) Antidepressants (5) Antiepileptics/Antiseizures (1) Antihistamines (5) (-) Antihypertensives (2) Antimicrobials (1) Antipsychotics (2) Benzodiazepines (1) Biomarkers (1) Drugs of Abuse (5) Industrial/Environmental Toxins (3) Metals/Elements (5) Muscle Relaxants (2) NPS/Designer Drugs (4) Other (1) Pesticides/Insecticides (1) Sedative/Hypnotics (6) Solvents (4) Stimulants (4) Volatiles (2) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Calcium Channel Blockers (1) Test Test Name 1275U Clonidine, Urine 1640U Diltiazem, Urine