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) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (6) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category Analgesics (4) (-) Antihistamines (2) Sedative/Hypnotics (6) Therapeutics (10) Volatiles (1) Test Sub-Category Other (2) Test Test Name 3740B Phenyltoloxamine, Blood 3740SP Phenyltoloxamine, Serum/Plasma