Higher oxides of nitrogen as an impurity in nitrous oxide.
D000769:Anesthesia, Inhalation / Q000009:adverse effects*; D000818:Animals; D004285:Dogs; D006801:Humans; D006859:Hydrogen; D008706:Methemoglobin / Q000096:biosynthesis; D009569:Nitric Oxide / Q000506:poisoning; D009573:Nitrites / Q000096:biosynthesis; D009585:Nitrogen Dioxide / Q000506:poisoning*; D009609:Nitrous Oxide / Q000009:adverse effects*
D009573:Nitrites; D009569:Nitric Oxide; D006859:Hydrogen; D008706:Methemoglobin; D009609:Nitrous Oxide; D009585:Nitrogen Dioxide