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/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Fluid (1) Plasma (1) Serum or Plasma (2) Tissue (1) (-) Urine (3) Test Area Therapeutics (3) Test Category (-) Anesthetics (2) Antianxiety (1) (-) Anticholinergics (1) Antidepressants (2) Antihistamines (1) Antitussives/Cough Suppressants (1) Muscle Relaxants (1) Plasticizers (1) Volatiles (3) Test Sub-Category Alkaloids (1) (-) Other (3) Test Test Name 0560U Benzocaine, Urine 0620U Benztropine, Urine 0800U Bupivacaine, Urine