Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (3) Gas Chromatography (GC) (1) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (8) Fluid (2) Oral Fluid (Saliva) (2) Serum or Plasma (11) (-) Tissue (2) Urine (9) Test Area Therapeutics (2) Test Category Antihistamines (1) Antitussives/Cough Suppressants (1) Test Sub-Category Cardiac Glycosides (1) (-) Other (2) Test Test Name 1760TI Diphenhydramine, Tissue 2915TI Dextro/Levo Methorphan, Tissue