What is the cause of HAPE and HACE?
In high altitude the air is much thinner, though the concentration of oxygen is the same the pressure gradient is different do to the pressure in hog altitudes being lower. When this is the case the body picks up the RR to compensate for the decrease in O2 due to the change in pressure. As the body increases it RR just to get the same amount of oxygen the same amount of oxygen, it is still blowing off the same amount of CO2 so the pt becomes alkalotic. As the bodies pH is altered it changes to permeability of the capillaries and causes them to begin to leak causing hypoxia and edema. This is the cause for HAPE and HACE