Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Gas Chromatography (GC) (9) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (8) Sample Type Blood (1) Urine (1) Test Area Therapeutics (2) Test Category (-) Antidepressants (2) Test Sub-Category Tricyclic (2) Test Test Name 8702B Nortriptyline, Blood 8702U Nortriptyline, Urine