急性高原适应不全症是指低地人急速进入(乘车或乘飞机)海拔3,000m以上高原后,其中部分人由于不能迅速和完善地适应高原环境,而在短期内(约1～7天)出现头痛、头晕、心慌、气促、恶心、呕吐、食欲不振、面部或全身浮肿等缺氧症状,甚至发生肺水肿或(和)昏迷者。故本症通常包括高原反应(有头痛等缺氧症状,而无重要体征和X线检查等重要发现)、高原肺水肿和高原昏 Acute altitude sickness syndrome refers to the rapid access to lowland people (by car or by plane) at an altitude of 3,000m above the plateau, some of them can not quickly and fully adapt to the plateau environment, and in the short term (about 1 to 7 days) appear Headache, dizziness, palpitation, shortness of breath, nausea, vomiting, loss of appetite, facial or systemic edema and other hypoxia symptoms, and even pulmonary edema or (and) coma. Therefore, the disease usually includes altitude sickness (headache and other hypoxia symptoms, but no important signs and X-ray examination and other important findings), high altitude pulmonary edema and high altitude faint