Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category Antithrombotics (2) Test Sub-Category (-) Anticoagulants (2) Antiplatelet Agents (2) Cannabinoids (4) Cyanide (3) Dopamine Antagonists (3) Other (25) Parkinsons (1) Proton-Pump Inhibitors (2) Tetracyclics (1) Tricyclic (2) Test Test Name 4800B Warfarin, Blood 4800SP Warfarin, Serum/Plasma