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) (2) Sample Type Blood (2) (-) Fluid (1) Serum or Plasma (3) (-) Tissue (1) Test Area Therapeutics (2) Test Category Antiarrhythmics (2) Test Sub-Category Benzodiazepines (2) (-) Cardiac Glycosides (2) Cocaine (2) Other (20) Phenothiazines (2) Selective Serotonin Reuptake Inhibitors (SSRI) (3) Trace Elements (6) Tricyclic (1) Test Test Name 1615FL Digoxin, Fluid 1615TI Digoxin, Tissue