Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (1) Tissue (1) Urine (1) Test Area Therapeutics (2) Test Category Analgesics (4) (-) Anesthetics (1) (-) Antianxiety (1) Antidepressants (4) Antidiabetics (1) Antihypertensives (2) Industrial/Environmental Toxins (1) Metals/Elements (2) NPS/Designer Drugs (5) Opiate/Opioid Antagonists (2) Sedative/Hypnotics (2) Stimulants (3) Vasodilators (1) Test Sub-Category Benzodiazepines (1) Other (1) Test Test Name 3214B Nitrous Oxide, Blood 3216B Nordiazepam and Metabolite, Blood