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) Sample Type Blood (1) (-) Tissue (1) Test Area Therapeutics (1) Test Category Analgesics (7) (-) Anesthetics (1) Antianxiety (2) Antidepressants (7) Antidiabetics (1) Antihypertensives (3) Industrial/Environmental Toxins (1) Metals/Elements (3) NPS/Designer Drugs (6) Opiate/Opioid Antagonists (5) Other (1) Sedative/Hypnotics (3) Solvents (3) Stimulants (5) Therapeutics (1) Vasodilators (1) Test Sub-Category Other (1) Test Test Name 3214TI Nitrous Oxide, Tissue