Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Enzyme Immunoassay (EIA) (7) Gas Chromatography (GC) (15) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (21) High Performance Liquid Chromatography/Tandem Quadrupole Time of Flight Mass Spectrometry. (1) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (4) Fluid (2) Serum or Plasma (2) (-) Urine (2) Test Area Drugs of Abuse (2) Test Category Analgesics (1) Depressants (1) Test Sub-Category Opiates/Opioids (1) Other (1) Test Test Name 9272U Thebaine Screen, Urine 9326U Gamma-Hydroxybutyric Acid Screen, Urine