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) Sample Type (-) Blood (1) Serum or Plasma (1) Tissue (1) (-) Urine (1) Test Area Therapeutics (2) Test Category (-) Antidepressants (2) Test Sub-Category Monoamine Oxidase Inhibitors (MAOI) (2) Other (2) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Tetracyclics (2) (-) Tricyclic (2) Test Test Name 3220B Nortriptyline, Blood 3220U Nortriptyline, Urine