Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (7) (-) Fluid (4) Serum or Plasma (5) Tissue (3) Urine (3) Test Area Exposure (1) Therapeutics (3) Test Category (-) Analgesics (3) Antihistamines (1) Antimicrobials (1) (-) Volatiles (1) Test Sub-Category Opiates/Opioids (3) Other (1) Test Test Name 2321FL Hydrocarbon and Oxygenated Volatiles Panel, Fluid 2340FL Hydrocodone - Free (Unconjugated), Fluid 8663FL Hydrocodone and Metabolites - Free (Unconjugated), Fluid 8664FL Hydromorphone - Free (Unconjugated), Fluid