Everest, a very physically fit male, was finally living out his ironic life dream of ascending Mt. Everest and planting his Everest-Everest flag. While camping at 10,ooo feet Everest started to notice that he was short of breath.
1. Is the PO2 higher or lower at this altitude? Why?
2. Discuss how difference in PO2 affects O2 saturation of his blood and leads to his shortness of breath.