Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (2) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (5) Fluid (3) Serum or Plasma (5) Tissue (2) (-) Urine (5) Test Area Exposure (3) 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 Carboxylic Acids (2) Opiates/Opioids (2) Other (1) Test Test Name 2278U Herbicides Panel 2, Urine 2300U Hippuric Acid, Urine 2306U Hippuric Acid and Methylhippuric Acid, Urine 8663U Hydrocodone and Metabolites - Total (Conjugated/Unconjugated), Urine 8664U Hydromorphone - Total (Conjugated/Unconjugated), Urine