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) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) Serum or Plasma (2) (-) Tissue (1) Urine (4) Test Area Therapeutics (1) Test Category Analgesics (1) Antimicrobials (1) Antipsychotics (1) (-) Antitussives/Cough Suppressants (1) Muscle Relaxants (1) Other (1) Sedative/Hypnotics (2) Test Sub-Category Other (1) Test Test Name 2915TI Dextro/Levo Methorphan, Tissue