Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (3) (-) Hair (2) Serum or Plasma (3) Test Area Test Category Test Sub-Category Test Test Name 6921H Barbiturates Screen, Hair 6922H Benzodiazepines Screen, Hair