Hypocapnia

Hypocapnia
Carbon dioxide

Hypocapnia (from the Greek words ὑπό meaning below normal and καπνός kapnós meaning smoke), also known as hypocarbia, sometimes incorrectly called acapnia, is a state of reduced carbon dioxide in the blood.[1] Hypocapnia usually results from deep or rapid breathing, known as hyperventilation.

Hypocapnia is the opposite of hypercapnia.

Short term hypocapnia does not usually have any adverse effects.[2] It is sometimes used as lifesaving treatment for conditions such as neonatal pulmonary-artery hypertension and for people with severe intracranial hypertension. If the state of hypocapnia persists or is prolonged, adverse outcomes may occur.[2]

  1. ^ Sharma, S; Hashmi, MF (19 February 2023). "Hypocarbia". StatPearls. StatPearls Publishing. PMID 29630219. Retrieved 13 December 2023.
  2. ^ a b Laffey, John G.; Kavanagh, Brian P. (2002-07-04). "Hypocapnia". New England Journal of Medicine. 347 (1): 43–53. doi:10.1056/NEJMra012457. ISSN 0028-4793.
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