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) Sample Type (-) Blood (1) Serum or Plasma (1) Urine (1) Test Area Drugs of Abuse (3) Impairment (1) Postmortem (2) (-) Therapeutics (1) Test Category Anticholinergics (1) Test Sub-Category Other (1) Test Test Name 3957B Procyclidine, Blood