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) (2) Enzyme Immunoassay (EIA) (1) (-) Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (8) Sample Type Blood (3) Serum or Plasma (2) Urine (1) Test Area Therapeutics (6) Test Category (-) Analgesics (2) (-) Antihistamines (4) Depressants (4) Sedative/Hypnotics (6) Volatiles (3) Test Sub-Category Opiates/Opioids (2) Other (4) Your search has returned no tests.