At altitudes above sea level, the partial pressure of all gases is reduced. For example, at the peak of Brian Head, the partial pressure of oxygen is reduced by about 35%. If you were up that high, how would the following be affected (as compared to sea level)?
A. Arterial PO2? decrease
B. Arterial PCO2? decrease
C. Tissue PO2? decrease
D. Venous PO2? decrease
E. Venous PCO2? decrease