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) (8) Sample Type Blood (1) Serum or Plasma (7) Test Area Exposure (6) Therapeutics (2) Test Category Anticholinergics (6) (-) Antithrombotics (8) Test Sub-Category (-) Anticoagulants (8) Your search has returned no tests.