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) (2) Sample Type Blood (5) (-) Fluid (1) Serum or Plasma (5) (-) Tissue (1) Urine (4) Test Area Therapeutics (2) Test Category Analgesics (1) (-) Antidepressants (2) Antiepileptics/Antiseizures (1) Metals/Elements (1) Test Sub-Category Other (2) Test Test Name 4535FL Trazodone, Fluid 4535TI Trazodone, Tissue