Nitrous oxide

Last revised by Daniel J Bell on 26 Sep 2023

Citation, DOI, disclosures and article data

Citation:

Lim L, Bell D, Sharma R, et al. Nitrous oxide. Reference article, Radiopaedia.org (Accessed on 06 May 2024) https://doi.org/10.53347/rID-173044

DOI:

https://doi.org/10.53347/rID-173044

Permalink:

https://radiopaedia.org/articles/173044

rID:

173044

Article created:

3 Aug 2023, Lincoln J Lim ◉

Disclosures:

At the time the article was created Lincoln J Lim had no financial relationships to ineligible companies to disclose.

View Lincoln J Lim's current disclosures

Last revised:

26 Sep 2023, Daniel J Bell ◉

Disclosures:

At the time the article was last revised Daniel J Bell had no financial relationships to ineligible companies to disclose.

View Daniel J Bell's current disclosures

Revisions:

4 times, by 4 contributors - see full revision history and disclosures

Systems:

Trauma

Tags:

rewrite

Synonyms:

Nitrous oxide (N2O)
N20

Nitrous oxide (N₂O) is an odorless and colorless gas that can cause a state of euphoria.

Nitrous oxide is the least powerful of the inhalational anesthetic agents, needing up to 104% concentration to reach 1 minimum alveolar concentration (MAC). Thus, it is usually admixed with a more volatile and potent anesthetic agent. It is commonly used in obstetric and emergency settings.