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) (1) Sample Type (-) Blood (1) Serum or Plasma (1) Test Area Therapeutics (1) Test Category Antithrombotics (1) Test Sub-Category Alcohols (2) (-) Anticoagulants (1) Herbicides (2) Insecticides (4) Organochlorides (1) Other (16) Test Test Name 4800B Warfarin, Blood