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 (6) Serum or Plasma (5) (-) Tissue (1) Urine (4) Test Area Drugs of Abuse (1) (-) Therapeutics (1) Test Category Anesthetics (1) Test Sub-Category (-) Other (1) Tricyclic (1) Test Test Name 3214TI Nitrous Oxide, Tissue