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) (2) Sample Type (-) Blood (1) (-) Tissue (1) Test Area (-) Therapeutics (2) Test Category Analgesics (15) (-) Anesthetics (2) Antacids (2) Antianxiety (2) Antiarrhythmics (3) Anticholinergics (1) Antidepressants (8) Antidiabetics (2) Antiepileptics/Antiseizures (9) Antihistamines (4) Antihypertensives (5) Antimicrobials (2) Antineoplastics (1) Antipsychotics (6) Antispasmodics (1) Appetite Suppressants (1) Decongestants (1) Immunosuppressants (1) Industrial/Environmental Toxins (1) Muscle Relaxants (1) Opiate/Opioid Antagonists (2) Sedative/Hypnotics (3) Stimulants (3) Vasodilators (2) Test Sub-Category Other (2) Test Test Name 3214B Nitrous Oxide, Blood 3214TI Nitrous Oxide, Tissue