High Altitude Sickness
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 hands 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 prevention of AMS.
Literatures and pamphlet published by Himalayan Rescue Association consists of detailed information on AMS. The Central Immigration Office, ask us and Different agencies in Kathmandu distribute this pamphlet free of cost. Since these documents also give information on the list of suggested medical supplies for trekking it is a compulsory item for every trekkers' medical kit.
Fitness
All trekking demands a level of fitness that will enable one to put a good
day's walking, up hill and down. Most treks should not be taken to gain more
than 500 metres in one day above 3,000 meters. There should be plenty of time
during the day to cover this distance, so the physical exertion though quite
strenuous at times, is not sustained. The best preparation for trekking is
cycling, swimming, jogging, squash, tennish and long walks involving up and
down hill. Good physical conditioning will probably help for the maximum enjoyment
of the treks.