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) (12) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (31) Sample Type Blood (1) Serum or Plasma (1) Test Area (-) Therapeutics (2) Test Category Analgesics (4) Anesthetics (4) Antianxiety (3) Antidepressants (8) (-) Antihistamines (2) Depressants (2) Muscle Relaxants (7) Sedative/Hypnotics (22) Test Sub-Category Other (2) Test Test Name 3740B Phenyltoloxamine, Blood 3740SP Phenyltoloxamine, Serum/Plasma