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) Immunoassay (IA) (1) Sample Type Blood (1) Fluid (1) (-) Serum or Plasma (2) Tissue (1) Test Area Therapeutics (2) Test Category (-) Antiarrhythmics (2) Test Sub-Category (-) Cardiac Glycosides (2) Other (1) Test Test Name 1613SP Digitoxin, Serum/Plasma 1615SP Digoxin, Serum/Plasma