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) Headspace Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (41) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Spectrophotometry (SP) (1) Sample Type (-) Blood (2) Serum or Plasma (4) Urine (1) Test Area Exposure (1) Therapeutics (1) Test Category Antithrombotics (1) Biomarkers (1) Test Sub-Category (-) Anticoagulants (1) Cyanide (1) (-) Other (1) Test Test Name 4472B Thiosulfate, Blood 4800B Warfarin, Blood