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Altitude acclimatization is the process of adjusting to decreasing oxygen levels at higher elevations, in order to avoid altitude sickness. [17] Once above approximately 3,000 metres (10,000 ft) – a pressure of 70 kilopascals (0.69 atm) – most climbers and high-altitude trekkers take the "climb-high, sleep-low" approach.
Peter H. Hackett is an American mountaineer and medical doctor. He is the third person to have summited Mount Everest in a solo ascent, climbing from South Col to the top on October 24, 1981. He studies the effect of altitude on human physiology, and is the founder of a medical rescue camp on Everest and a rescue clinic and lab on Mount Denali ...
High-altitude adaptation in humans is an instance of evolutionary modification in certain human populations, including those of Tibet in Asia, the Andes of the Americas, and Ethiopia in Africa, who have acquired the ability to survive at altitudes above 2,500 meters (8,200 ft). [1] This adaptation means irreversible, long-term physiological ...
Emergency medicine, wilderness medicine. High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema that occurs in otherwise healthy people at altitudes typically above 2,500 meters (8,200 ft). [2] However, cases have also been reported between 1,500–2,500 metres or 4,900–8,200 feet in more vulnerable ...
Specialty. Emergency medicine. Chronic mountain sickness (CMS) is a disease in which the proportion of blood volume that is occupied by red blood cells increases (polycythaemia) and there is an abnormally low level of oxygen in the blood (hypoxemia). CMS typically develops after extended time living at high altitude (over 2,500 metres (8,200 ft ...
Pikes Peak is one of Colorado's 54 fourteeners, mountains more than 14,000 feet (4,267.2 m) above sea level. The massif rises over 8,000 ft (2,400 m) above downtown Colorado Springs. Pikes Peak is a designated National Historic Landmark. It is composed of a characteristic pink granite called Pikes Peak granite.
Mount Elbert is located in San Isabel National Forest, 12.1 miles (19.4 km) southwest (bearing 223°) of the city of Leadville in Lake County, Colorado. [1] [2] [3] [a] The mountain was named in honor of a Colorado statesman, Samuel Hitt Elbert, who was active in the formative period of the state and Governor of the Territory of Colorado from ...
Mountain sickness may progress to HACE (high-altitude cerebral edema) and HAPE (high-altitude pulmonary edema), both of which can be fatal within 24 hours. [42] [44] [46] In high mountains, atmospheric pressure is lower and this means that less oxygen is available to breathe. [42] This is the underlying cause of altitude sickness.