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 Therapeutics (1) Test Category Antispasmodics (1) Test Sub-Category (-) Antispasmodics (1) Opiates/Opioids (3) Other (3) Test Test Name 3266SP Oxybutynin, Serum/Plasma