High

Respiratory System


{"ops":[{"insert":"AMS: Overview"},{"insert":"\n","attributes":{"header":1}},{"insert":"Acute mountain sickness (AMS) is the most common high-altitude illness. Affected individuals manifest a headache that is variably accompanied by anorexia, nausea, vomiting, sleep disturbances, fatigue, or dizziness. In two-thirds of susceptible subjects, symptoms commence within 12 hours of ascent; in the remaining one-third, these occur within 36 hours.\n\nNote that \u0022high altitude\u0022 is defined as an elevation \u22655,000 feet (1,500 meters); however, AMS rarely occurs at this height. As a rule of thumb though, the higher the elevation, the greater the risk for the condition, particularly if the ascent is rapid. Studies conducted in Nepal, Colorado, Kilimanjaro, and the Alps show a prevalence of AMS ranging from 9% to 58%, increasing with altitud"}]}

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