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 (5) (-) Anesthetics (1) Antidepressants (3) Antiepileptics/Antiseizures (3) Antihistamines (1) Antihypertensives (1) Antipsychotics (2) Hallucinogens (1) Metals/Elements (4) Pesticides/Insecticides (1) Sedative/Hypnotics (1) Stimulants (3) Volatiles (1) Test Sub-Category Other (1) Test Test Name 3214TI Nitrous Oxide, Tissue