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) (1) Enzyme Immunoassay (EIA) (8) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Headspace Gas Chromatography (GC) (3) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (3) Oral Fluid (Saliva) (2) Serum or Plasma (5) Tissue (1) (-) Urine (5) Test Area Drugs of Abuse (1) Therapeutics (4) Test Category Analgesics (1) Anticholinergics (1) Antidepressants (2) Antihistamines (1) Antihypertensives (1) (-) Antitussives/Cough Suppressants (4) (-) Diuretics (1) NPS/Designer Drugs (3) Potassium Channel Blockers (1) Test Sub-Category Other (5) Test Test Name 2915U Dextro / Levo Methorphan - Total, Urine 2917U Dextromethorphan and Metabolite Ratio - Total, Urine 9205U Dextro / Levo Methorphan Screen - Total, Urine 9206U Dextrorphan / Levorphanol Screen - Total, Urine 9318U Diuretics Screen, Urine