oxygen delivery is dependent on cardiac output and oxygen content


  • Oxygen delivery is dependent on cardiac output and O2O_2 content1
O2 delivery=CO× O2 ContentO_2\space delivery = CO\times\space O_2\space Content
  • Oxygen content is the difference between arterial and venous oxygen. The equation can be rewritten as follows2:
VO2 =CO× (CaO2CvO2)V_{O_2}\space = CO\times\space (C_{aO_2}- C_{vO_2})
  • Oxygen content is also dependent on several factors:
O2 Content=1.39×Hgb×%Sat+0.003×PaO2O_2\space Content = 1.39\times Hgb\times \%Sat +0.003\times P_aO_2

Footnotes

  1. cardiopulmonary exercise test CPET

  2. https://en.wikipedia.org/wiki/Fick_principle