When experiencing symptoms of severe altitude sickness, immediate descent and emergency hospital treatment are mandatory. Most likely, the person suffering from severe altitude sickness will no longer be in a position to descend on their own.
To receive the necessary assistance with emergency evacuation, it is important to be accompanied by an experienced guide, and for the guide to have access to satellite or radio phones for making emergency calls. It is also important to be covered by adequate insurance that covers helicopter evacuation for high altitude activities.
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