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 (1) (-) Anesthetics (1) Antidepressants (1) Antidiabetics (1) Industrial/Environmental Toxins (1) NPS/Designer Drugs (1) Opiate/Opioid Antagonists (2) Other (1) Stimulants (3) Therapeutics (1) Vasodilators (1) Test Sub-Category (-) Other (1) Test Test Name 3214TI Nitrous Oxide, Tissue