Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (3) Fluid (2) Serum or Plasma (3) Tissue (1) (-) Urine (2) Test Area Therapeutics (2) Test Category Alcohols (4) (-) Analgesics (2) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (1) Antidiabetics (1) Antiepileptics/Antiseizures (3) Antihistamines (2) Antipsychotics (1) Antitussives/Cough Suppressants (2) Biomarkers (1) Depressants (1) Emetics (1) Expectorants (1) Hallucinogens (6) Herbicides (1) Hydrocarbons (1) Laxatives (1) Metals/Elements (9) Muscle Relaxants (2) Pesticides/Insecticides (1) Sedative/Hypnotics (2) Solvents (4) Stimulants (1) Volatiles (7) Test Sub-Category NSAIDs (2) (-) Opiates/Opioids (2) Test Test Name 2079U Fentanyl and Metabolite, Urine 2610U Meperidine and Metabolite, Urine