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) (1) Sample Type Blood (42) Fluid (8) (-) Hair (1) Meconium (1) Plasma (1) Serum or Plasma (37) Tissue (7) Urine (33) Test Area Drugs of Abuse (1) Test Category Drugs of Abuse (1) Other (1) (-) Sedative/Hypnotics (1) Test Sub-Category Barbiturates (1) Test Test Name 6921H Barbiturates Screen, Hair