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) (18) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Serum or Plasma (1) Test Area Drugs of Abuse (1) Therapeutics (2) Test Category (-) Analgesics (1) Antiparkinsons (1) (-) Antithrombotics (2) Biomarkers (7) Sedative/Hypnotics (3) Test Sub-Category Anticoagulants (2) Opiates/Opioids (1) Test Test Name 4376B Thebaine, Blood 4800B Warfarin, Blood 4800SP Warfarin, Serum/Plasma