font size

Definition of Nitrous oxide (laughing gas)

Nitrous oxide (laughing gas): A gas that can cause general anesthesia. Nitrous oxide is sometimes given in the company of other anesthetic agents but it is not used today as the only anesthetic agent because the concentration of nitrous oxide needed to produce anesthesia is close to the concentration that seriously lowers the blood oxygen level and creates a hazardous hypoxic state.

Nitrous oxide figured in the history of anesthesiology. In 1840 a dentist named Horace Wells had the idea that, with the recently discovered "exhilarating or laughing gas", teeth might be extracted without pain. Under its influence he had one of his own teeth pulled in 1844 and afterwards frequently used it in his practice.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=7793
Last Editorial Review: 9/20/2012

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations

NIH talks about Ebola on WebMD