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 (3) Fluid (2) Hair (1) Serum or Plasma (3) Tissue (2) (-) Urine (2) Test Area Therapeutics (2) Test Category Analgesics (1) Antihypertensives (1) Test Sub-Category Benzodiazepines (3) (-) Diuretics (1) (-) Opiates/Opioids (1) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Test Test Name 2079U Fentanyl and Metabolite, Urine 2140U Furosemide, Urine