Table 1.
Calculated arterial oxygen content (CaO2) differences between sea level and high altitude. PB = barometric pressure, SaO2 = arterial hemoglobin oxygen saturation, Hb = hemoglobin, PaO2= arterial oxygen partial pressure, Hb O2% is the fraction of oxygen transported by hemoglobin, and dissolved O2 is the fraction of O2 dissolved in plasma.
| PB mmHg |
SaO2 % |
Hb gm/dL |
PaO2 mmHg |
CaO2 Vol% |
Hb O2 % |
Dissolved O2 % |
|
|---|---|---|---|---|---|---|---|
| Sea-level | 760 | 99 | 15 | 100 | 20 | 98.45 | 1.55 |
| La Paz (3500 m) | 495 | 90 | 17 | 60 | 20.50 | 99.13 | 0.87 |