Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (3) (-) Fluid (2) Serum or Plasma (3) Tissue (2) Urine (1) Test Area Therapeutics (2) Test Category (-) Antiarrhythmics (1) (-) Antihistamines (1) Cholinesterase Inhibitors (1) Test Sub-Category Cardiac Glycosides (1) Other (1) Test Test Name 1615FL Digoxin, Fluid 1760FL Diphenhydramine, Fluid