Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (1) Sample Type (-) Blood (2) Serum or Plasma (2) Urine (1) Test Area Drugs of Abuse (1) Therapeutics (1) Test Category Anticoagulants (1) (-) Antithrombotics (1) (-) Drugs of Abuse (1) Drugs of Abuse, Therapeutics (4) NPS/Designer Drugs (1) Pesticides/Insecticides (14) Therapeutics (4) Test Sub-Category Anticoagulants (1) Other (1) Test Test Name 1876B Drug Screen - Expanded, Blood 4800B Warfarin, Blood