True about ascent to high altitude:
Respiratory alkalosis occurs Polycythemia is due to increased erythropoietin Acute mountain sickness develops 8-24 hr after arrival at altitude and lasts 4-8 days. Acute altitude illness: 3 forms Acute mountain sickness (AMS) The pathophysiology of AMS is not well understood. The essential factor responsible for this condition is hypoxemia High altitude cerebral edema (HACE) High altitude pulmonary edema (HAPE)
Respiratory acidosis
Polycythemia due to dehydration
Acute mountain sickness stas to develop on 7th day of ascent
Acetazolamide may be given prophylactically
Respiratory System Pa 3