without supplemental oxygen

High-altitude pulmonary edema (HAPE) is a life-threatening accumulation of fluid in the lungs that occurs in healthy people used to living at low altitudes who travel above 2,500 meters (8,200 ft). However, cases have also been reported between (1,500–2,500 m.) or (4,900–8,200 ft.) in more vulnerable people. HAPE remains the major cause of death related to high-altitude exposure. Before HAPE was understood […]