Acute altitude sickness

Acute altitude sickness (acute altitude sickness) is a variety of pathological reactions that occur after the human body is exposed to hypoxic environment. At present, the nomenclature and classification of acute altitude sickness are basically unified at home and abroad. According to the clinical symptoms and conditions of the disease, the International Conference on High Altitude Diseases classifies it as mild, moderate and severe acute high altitude disease. Mild (degree 1): can move normally despite symptoms, can continue climbing; medium (degree 2): severe symptoms, decreased mobility, can not continue climbing, need bed rest; heavy (Ⅲ degree): progressive disease development , And severe symptoms such as confusion, need first aid and escort the plain or low altitude.