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 (2) Serum or Plasma (2) (-) Urine (1) Test Area Therapeutics (1) Test Category Analgesics (3) Antianxiety (1) Antidepressants (1) Antihypertensives (1) NPS/Designer Drugs (2) Opiate/Opioid Antagonists (3) (-) Sedative/Hypnotics (1) Stimulants (2) Test Sub-Category Benzodiazepines (1) Test Test Name 3175U Nitrazepam and Metabolite, Urine