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) Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (4) Fluid (3) (-) Serum or Plasma (4) Tissue (2) Urine (3) Test Area Therapeutics (4) Test Category (-) Analgesics (3) Anticholinergics (1) Antihistamines (1) (-) Antihypertensives (1) Antimicrobials (1) Antipsychotics (2) Depressants (1) Hypoglycemic Agents (1) Test Sub-Category Diuretics (1) Opiates/Opioids (3) Test Test Name 2330SP Hydrochlorothiazide, Serum/Plasma 2340SP Hydrocodone - Free (Unconjugated), Serum/Plasma 8663SP Hydrocodone and Metabolites - Free (Unconjugated), Serum/Plasma 8664SP Hydromorphone - Free (Unconjugated), Serum/Plasma