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) Enzyme Immunoassay (EIA) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (1) Serum or Plasma (1) Test Area (-) Drugs of Abuse (2) Test Category (-) Depressants (2) Hallucinogens (3) Test Sub-Category Opiates/Opioids (2) Test Test Name 9343B Heroin Screen, Blood 9343SP Heroin Screen, Serum/Plasma