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) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Serum or Plasma (1) Tissue (1) (-) Urine (2) Test Area Therapeutics (2) Test Category Antidepressants (2) Test Sub-Category Other (3) (-) Tricyclic (2) Test Test Name 3220U Nortriptyline, Urine 9433U Nortriptyline Screen, Urine