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) (2) Sample Type (-) Blood (1) Meconium (1) Serum or Plasma (1) (-) Urine (1) Test Area Drugs of Abuse (2) Test Category Opiates/Opioids (2) Test Sub-Category Other (2) Test Test Name 4127B Suboxone® - Free, Blood 4127U Suboxone® - Total, Urine