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) Sample Type Blood (2) Serum or Plasma (3) (-) Tissue (1) Urine (4) Test Area Therapeutics (1) Test Category Antianxiety (1) Antiarrhythmics (2) Antihistamines (4) (-) Antitussives/Cough Suppressants (1) Cholinesterase Inhibitors (1) Drugs of Abuse (5) Drugs of Abuse, Therapeutics (3) Test Sub-Category Other (1) Test Test Name 2915TI Dextro/Levo Methorphan, Tissue