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) (3) Sample Type Blood (1) Serum or Plasma (1) Urine (1) Test Area Exposure (3) Test Category Alcohols (7) Analgesics (5) Anesthetics (1) Antiarrhythmics (2) Anticholinergics (3) Antidiabetics (2) Antiepileptics/Antiseizures (12) Antihistamines (7) Antipsychotics (7) Appetite Suppressants (3) Chemicals (1) Cholinesterase Inhibitors (3) Diagnostic Aids (2) Drugs of Abuse (5) Exposure (1) Hallucinogens (15) Herbicides (2) Industrial/Environmental Toxins (1) Perfluorinated Compounds (2) Plasticizers (1) (-) Solvents (3) Therapeutics (14) Vasodilators (3) Volatiles (10) Test Sub-Category (-) Other (3) Test Test Name 4030B Pyridine, Blood 4030SP Pyridine, Serum/Plasma 4030U Pyridine, Urine