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) (2) Sample Type (-) Blood (1) Serum or Plasma (1) (-) Urine (1) Test Area Exposure (2) Test Category Alcohols (4) Analgesics (4) Antiarrhythmics (1) Anticholinergics (2) Antidiabetics (1) Antiepileptics/Antiseizures (4) Antihistamines (4) Antipsychotics (4) Appetite Suppressants (2) Cholinesterase Inhibitors (2) Diagnostic Aids (2) Drugs of Abuse (4) Exposure (1) Hallucinogens (6) Herbicides (1) Perfluorinated Compounds (1) Plasticizers (1) (-) Solvents (2) Therapeutics (6) Vasodilators (2) Volatiles (7) Test Sub-Category (-) Other (2) Test Test Name 4030B Pyridine, Blood 4030U Pyridine, Urine