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 24 Hour Urine (1) Blood (45) (-) Fluid (1) Hair (2) Nails (1) RBCs (3) Serum or Plasma (64) Urine (37) Test Area Test Category Test Sub-Category Test Test Name 4535FL Trazodone, Fluid