Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (7) Fluid (1) Serum or Plasma (6) (-) Tissue (1) Urine (5) Test Area (-) Therapeutics (1) Test Category Antidepressants (1) Test Sub-Category Other (4) Selective Serotonin Reuptake Inhibitors (SSRI) (4) (-) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Tricyclic (3) Test Test Name 4767TI Venlafaxine and Metabolite, Tissue