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) (3) Sample Type (-) Blood (2) (-) Serum or Plasma (1) Urine (2) Test Area Therapeutics (3) Test Category (-) Analgesics (3) Test Sub-Category (-) Opiates/Opioids (3) Other (4) Your search has returned no tests.