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 (1) Serum or Plasma (1) Test Area Drugs of Abuse (1) Test Category Analgesics (1) (-) Depressants (1) Hallucinogens (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 9343B Heroin Screen, Blood