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 (3) Fluid (1) Serum or Plasma (3) (-) Tissue (1) Urine (1) Test Area (-) Therapeutics (1) Test Category Antidepressants (1) Test Sub-Category Beta Blockers (1) Calcium Channel Blockers (1) Other (6) Selective Serotonin Reuptake Inhibitors (SSRI) (1) (-) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Test Test Name 4767TI Venlafaxine and Metabolite, Tissue