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) (1) Sample Type 24 Hour Urine (2) Blood (11) Fluid (4) Hair (8) Liquid (2) (-) Meconium (1) Nails (5) Oral Fluid (Saliva) (1) RBCs (6) Serum or Plasma (11) Stool (1) Tissue (3) Urine (9) Test Area Newborn Tox (1) Test Category (-) Drugs of Abuse (1) Test Sub-Category Opiates/Opioids (1) Your search has returned no tests.