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) Sample Type Blood (1) Test Area (-) Drugs of Abuse (1) Test Category Analgesics (1) Test Sub-Category (-) Opiates/Opioids (1) Test Test Name 4376B Thebaine, Blood