Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme Immunoassay (EIA) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (6) Fluid (3) Serum or Plasma (6) Tissue (2) (-) Urine (4) Test Area Drugs of Abuse (2) Therapeutics (2) Test Category Acids (2) Alcohols (1) (-) Analgesics (2) Anticholinergics (1) Antihistamines (1) Antihypertensives (1) Antimicrobials (1) (-) Depressants (2) Hallucinogens (1) Herbicides (1) Volatiles (1) Test Sub-Category Opiates/Opioids (4) Test Test Name 2276U Heroin Metabolites - Free (Unconjugated), Urine 8663U Hydrocodone and Metabolites - Total (Conjugated/Unconjugated), Urine 8664U Hydromorphone - Total (Conjugated/Unconjugated), Urine 9343U Heroin Screen, Urine