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 (4) Antihypertensives (1) Metals/Elements (3) NPS/Designer Drugs (3) Opiate/Opioid Antagonists (3) (-) Sedative/Hypnotics (1) Solvents (3) Stimulants (2) Test Sub-Category Benzodiazepines (1) Test Test Name 3175U Nitrazepam and Metabolite, Urine