Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Enzymatic Assay (EZA) (1) (-) Gas Chromatography (GC) (3) Sample Type (-) Blood (1) Serum or Plasma (1) (-) Urine (2) Test Area Exposure (1) Therapeutics (2) Test Category (-) Antispasmodics (2) Muscle Relaxants (3) (-) Other (1) Pesticides/Insecticides (1) Test Sub-Category Antispasmodics (2) Other (1) Test Test Name 1352U o-Cresol, Urine 3266B Oxybutynin, Blood 3266U Oxybutynin, Urine