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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (3) (-) Fluid (2) Serum or Plasma (3) Tissue (2) Urine (2) Test Area Therapeutics (2) Test Category Antidepressants (1) Antihypertensives (1) Test Sub-Category Beta Blockers (1) (-) Calcium Channel Blockers (1) Other (8) Selective Serotonin Reuptake Inhibitors (SSRI) (1) (-) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Toxic Elements (1) Trace Elements (1) Test Test Name 4767FL Venlafaxine and Metabolite, Fluid 4770FL Verapamil, Fluid