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) (2) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) (-) Serum or Plasma (2) Urine (1) Test Area Therapeutics (2) Test Category Analgesics (2) (-) Antiarrhythmics (1) (-) Anticholinergics (1) Antidepressants (3) Antiepileptics/Antiseizures (2) Antineoplastics (1) Herbicides (1) Muscle Relaxants (1) Pesticides/Insecticides (2) Vasodilators (1) Volatiles (3) Test Sub-Category Other (2) Test Test Name 3055SP Mexiletine, Serum/Plasma 3957SP Procyclidine, Serum/Plasma