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) (2) Sample Type Blood (2) Serum or Plasma (1) (-) Urine (2) Test Area Exposure (1) Therapeutics (1) Test Category Antispasmodics (1) (-) Muscle Relaxants (1) (-) Other (1) Test Sub-Category Other (2) Test Test Name 1352U o-Cresol, Urine 3248U Orphenadrine, Urine