Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Gas Chromatography (GC) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Sample Type Blood (1) Urine (1) Test Area Drugs of Abuse (1) Therapeutics (1) Test Category (-) Analgesics (2) Test Sub-Category (-) Opiates/Opioids (2) Test Test Name 4303U Talwin® Nx, Urine 4376B Thebaine, Blood