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) Sample Type Blood (3) (-) Serum or Plasma (1) Tissue (1) Urine (3) Test Area Drugs of Abuse (1) (-) Therapeutics (1) Test Category Antidepressants (1) Test Sub-Category Benzodiazepines (3) Beta Blockers (1) Calcium Channel Blockers (1) NSAIDs (3) Opiates/Opioids (1) Other (5) (-) Tricyclic (1) Test Test Name 3220SP Nortriptyline, Serum/Plasma