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) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (3) Sample Type Blood (1) Serum or Plasma (1) Test Area Drugs of Abuse (2) Test Category Analgesics (6) (-) Depressants (2) Psychoactives (3) Stimulants (2) Test Sub-Category Opiates/Opioids (2) Test Test Name 9343B Heroin Screen, Blood 9343SP Heroin Screen, Serum/Plasma