Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (4) Gas Chromatography (GC) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (30) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type (-) Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area (-) Therapeutics (2) Test Category Antitussives/Cough Suppressants (2) Test Sub-Category Other (2) Test Test Name 0585B Benzonatate, Blood 0585SP Benzonatate, Serum/Plasma