Happy hypoxia in COVID-19: pathophysiology and pulse oximetry accuracy

  • Noamaan Wilson-Baig @LeDyslexicMedic
  • Journal of Paramedic Practice, July 2021, Mark Allen Group
  • DOI: 10.12968/jpar.2021.13.7.288

  1. Happy Hypoxia has gained media coverage during COVID19. What is Happy Hypoxia?
  2. This article explores the phenomenon of ‘happy hypoxia’ in COVID-19 and the possible mechanisms involved. A concise description of breathlessness, hypoxia and hypoxaemia is provided as well as the principles underpinning pulse oximetry. The limitation of pulse oximetry is also discussed.
  3. The aetiology of ‘happy hypoxia’ is unclear. A possible pathophysiological explanation could be that there is a dissociation between hypoxaemia and the sensation of breathlessness. Recent literature has questioned the accuracy of pulse oximetry in COVID-19. Inaccuracies in readings, which arise for several reasons, could in part explain ‘happy hypoxia’

For full article, please read here for free https://www.paramedicpractice.com/features/article/happy-hypoxia-in-covid-19-pathophysiology-and-pulse-oximetry-accuracy

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