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 Antianxiety (2) (-) Antiarrhythmics (2) Antidepressants (3) Antigout Agents (1) Antihistamines (4) Antipsychotics (4) Cholinesterase Inhibitors (1) Diagnostic Aids (1) Drugs of Abuse (5) Gases (1) Metals/Elements (6) Muscle Relaxants (3) Sedative/Hypnotics (3) Stimulants (2) Test Sub-Category Cardiac Glycosides (2) Test Test Name 1615FL Digoxin, Fluid 1615TI Digoxin, Tissue