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/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (10) Sample Type Blood (1) Test Area (-) Drugs of Abuse (1) Exposure (5) Therapeutics (3) Test Category Analgesics (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 4376B Thebaine, Blood