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) Gas Chromatography (GC) (2) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (7) Sample Type (-) Blood (2) Serum or Plasma (2) Urine (2) Test Area Therapeutics (2) Test Category Alcohols (1) (-) Analgesics (1) Antianxiety (1) Gases (1) (-) Sedative/Hypnotics (1) Volatiles (2) Test Sub-Category Opiates/Opioids (1) Other (1) Test Test Name 2849B Methaqualone, Blood 8721B Meperidine and Metabolite, Blood