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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (51) Fluid (15) (-) Hair (2) Meconium (4) Oral Fluid (Saliva) (2) Serum or Plasma (47) Tissue (9) Urine (43) Test Area Therapeutics (2) Test Category Analgesics (2) Test Sub-Category Barbiturates (1) Benzodiazepines (1) Cocaine (1) Macrominerals (1) (-) Opiates/Opioids (2) Other (9) Toxic Elements (10) Trace Elements (7) Test Test Name 6923H Opiates Screen, Hair 9291H Fentanyl Screen, Hair