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 (6) Fluid (2) Serum or Plasma (6) (-) Tissue (2) Urine (4) Test Area Therapeutics (2) Test Category (-) Antiarrhythmics (1) Antidepressants (1) Antigout Agents (1) (-) Antihistamines (1) Antipsychotics (1) Muscle Relaxants (1) Sedative/Hypnotics (2) Stimulants (1) Test Sub-Category Cardiac Glycosides (1) Other (1) Test Test Name 1615TI Digoxin, Tissue 1760TI Diphenhydramine, Tissue