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) (12) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (66) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (3) Urine (1) Test Area Drugs of Abuse (1) Exposure (2) (-) Therapeutics (2) Test Category Antithrombotics (1) Sedative/Hypnotics (1) Test Sub-Category Anticoagulants (1) Other (1) Test Test Name 4170B Secobarbital, Blood 4800B Warfarin, Blood