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 (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) (3) Sample Type (-) Blood (1) Fluid (1) Serum or Plasma (1) Urine (1) Test Area Therapeutics (1) Test Category (-) Analgesics (1) Antihistamines (1) Sedative/Hypnotics (2) Therapeutics (2) Volatiles (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 3990B Propoxyphene and Metabolite, Blood