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) (9) Sample Type Blood (2) Fluid (2) Serum or Plasma (2) Tissue (2) Urine (1) Test Area Drugs of Abuse (1) Postmortem (2) (-) Therapeutics (9) Test Category Analgesics (9) Test Sub-Category (-) Opiates/Opioids (9) Your search has returned no tests.