Altitude Sickness, often known as Acute Mountain Sickness (AMS) is particularly a important medical consideration while trekking in Nepal. Altitude Sickness means the effect of altitude on those who ascend too rapidly to elevations above 3,000 meters. The initial symptoms of AMS are as following:
Nausea, vomiting
Loss of appetite
Insomnia / sleeplessness
Persistent headache
Dizziness, light headedness, confusion,
Disorientation, drunken gait
Weakness, fatigue, lassitude, heavy legs
Slight swelling of hand and face
Breathlessness and Breathing irregularity
Reduced urine output
These symptoms are to be taken very seriously. In case of appearance of any of the above symptoms any further ascent should be reconsidered otherwise more serious problems can occur which can even cause death sometimes within a few hours, the only cure for the Altitude Sickness is to descend to a lower elevations immediately. Acclimatization by ascending to no more than 300 to 500 meters per day above 3,000 meters and the proper amount of rest are the best methods for preventions of AMS.
Literatures and pamphlet
published by Himalayan Rescue Association consists of
detailed information on AMS. The Central Immigration
Office and all trekking agencies in Katmandu distribute
this pamphlet free of Cost. Since these medical also
give information on the list of suggested documents
supplies for trekkers it is a compulsory item for every
trekkers' medical kit.
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