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 (1) Serum or Plasma (1) Urine (1) Test Area Drugs of Abuse (1) Test Category Analgesics (9) (-) Depressants (1) NPS/Designer Drugs (1) Test Sub-Category Benzodiazepines (2) (-) Opiates/Opioids (1) Other (1) Test Test Name 9343B Heroin Screen, Blood