Acute Mountain Sickness In Tibet

Acute Mountain Sickness (AMS) is common at high altitudes

, and depends on the elevation, the rate of ascent and individual susceptibility. Most visitors to Tibet will suffer from at least some symptoms that will generally disappear through acclimatization in several hours to several days.

Symptoms tend to be worse at night and include headache, dizziness, and lethargy, loss of appetite, nausea, breathlessness and irritability. Difficulty sleeping is another common symptom, and many travelers have trouble sleeping for the first few days after arrival at Lhasa.

An altitude over 3,000 meters (9,843 feet) is usually defined as high altitude. Since most places in Tibet are higher than this level. Acute Mountain Sickness (AMS), also called Altitude Sickness is the biggest health risk to tourists traveling in Tibet. AMS is common at high altitudes due to the decreasing availability of oxygen. Most people will suffer differing degrees of symptoms at high elevation. The occurrence of AMS is dependent on the altitude, the ascent rate and individual physical condition. Symptoms of AMS include headache, nausea, dizziness, fatigue, shortness of breath, loss of appetite and disturbed sleep. Most people will experience one or more AMS symptoms upon their arrival in Tibet. The symptoms will usually gradually decrease in severity during acclimatization. Mild AMS usually will not interfere with mild activity.

However, AMS can be very serious, with the most serious symptoms being High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE), which can be fatal. Symptoms of HAPE include weakness, shortness of breath, even at rest, impending suffocation at night, and a persistent productive cough with white, watery, or frothy fluid. Symptoms of HPCE may include headache, ataxia, weakness, hallucinations, psychotic behavior, coma and loss of memory. Both approach and strike at night and can be fatal! Immediate descent is the surest treatment.

AMS can be lessened or avoided with proper acclimatization, which will also ease and reduce AMS symptoms. A gradual ascent will allow your body to acclimatize to higher altitudes and the decreased oxygen supply. Go no higher 300 - 400 hundred meters (984 - 1,312 feet) daily and have a rest after each 1,000 meter (3280 feet) ascent. Medication also helps to prevent AMS. Mild AMS symptoms can be treated with proper medication. If medication does not relieve the symptoms, go to hospital or evacuate immediately to safe altitude!

For more information, please visit http://www.tibetlhasatour.com

by: tibetlhasatour

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