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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (10) Sample Type Urine (2) Test Area (-) Therapeutics (2) Test Category Analgesics (2) Test Sub-Category Barbiturates (5) (-) Opiates/Opioids (2) Other (9) Phenothiazines (5) Tricyclic (3) Test Test Name 4303U Talwin® Nx, Urine 9287U Tramadol Screen, Urine