Many hospitals can provide plateau reaction test service, which is relatively accurate, or you can use the method of blowing balloons at home for self-testing. Self-test of plateau reaction, you need to prepare a lot of balloons, continuous blowing, each blowing to a diameter of 10cm or more, continue to blow for 1 minute. If there is more obvious dizziness and breathing difficulties, it means that the probability of plateau reaction is relatively large. Plateau reaction refers to an acute reaction caused by too high a height, low environmental pressure, low oxygen and an acute drop in blood oxygen in the human body. The drop in blood oxygen will cause symptoms such as breathlessness, dizziness, nausea, etc. In severe cases, acute pulmonary edema and cerebral edema will also occur. Self-assessment of possible plateau reaction people before going to the plateau region is recommended under the guidance of the doctor to bring rhodiola rosea, aminophylline and other drugs to prevent.