Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (5) Enzyme Immunoassay (EIA) (1) (-) Gas Chromatography (GC) (8) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (26) Sample Type Blood (3) Serum or Plasma (3) Urine (2) Test Area (-) Therapeutics (8) Test Category (-) Analgesics (6) Antiarrhythmics (2) Anticholinergics (3) Antidepressants (10) Antiepileptics/Antiseizures (4) Antihistamines (1) (-) Antineoplastics (2) Muscle Relaxants (3) Vasodilators (2) Test Sub-Category Opiates/Opioids (3) Other (5) Your search has returned no tests.