Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme Immunoassay (EIA) (1) (-) Gas Chromatography (GC) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) Fluid (1) Serum or Plasma (2) (-) Urine (2) Test Area Therapeutics (2) Test Category Analgesics (2) Test Sub-Category Barbiturates (1) Monoamine Oxidase Inhibitors (MAOI) (1) (-) Opiates/Opioids (2) Organochlorides (1) Other (11) Succinimide (1) Tetracyclics (1) Tricyclic (1) Test Test Name 3400U Pentazocine, Urine 3990U Propoxyphene and Metabolite, Urine