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) (5) Sample Type Blood (2) Serum or Plasma (1) Urine (2) Test Area Therapeutics (5) Test Category (-) Analgesics (5) Test Sub-Category (-) Opiates/Opioids (5) Other (11) Toxic Elements (9) Trace Elements (6) Your search has returned no tests.