How high is altitude sickness?

Question 1: There is obvious altitude sickness at altitude. Altitude sickness is a natural physiological reaction of human body to adapt to the changes of air pressure difference, low oxygen content and dry air caused by altitude. When the altitude reaches about 2700 meters, altitude sickness will occur. Symptoms of altitude sickness generally include headache, shortness of breath, chest tightness, anorexia, low fever, dizziness and fatigue. Some people appear because of low oxygen content: purple lips and fingertips, lethargy, hyperactivity, insomnia and other different manifestations. Some people appear because of dry air: rough skin, chapped lips, bleeding nostrils or blood clots.

How to avoid or reduce altitude sickness?

Most people have mild or severe altitude sickness when they first arrive at the plateau. Generally, what kind of blessings will have altitude sickness is irregular. The best way to avoid or reduce altitude sickness is to face it with a good attitude. Many reaction symptoms are caused by psychological effects or psychological effects. For example, people who are afraid of the plateau and lack the mental preparation and determination to overcome it will have more chances to have altitude sickness. It is suggested that when you first arrive at the plateau, don't walk fast, let alone run or run, and don't do manual labor to avoid overeating and increase the burden on digestive organs. Don't drink and smoke, eat more foods rich in vitamins such as vegetables and fruits, drink plenty of water, keep warm and take fewer baths to avoid catching a cold and wasting energy. Don't take oxygen at first, try to adapt yourself, otherwise you may never be able to live without oxygen at the plateau.

You can take some drugs to relieve altitude sickness: Rhodiola sachalinensis (taken at least 10 days in advance), Gao Yuan 'an, American ginseng buccal tablets, Nuodikang capsules (very useful for relieving extreme fatigue), Baifuning (very useful for controlling headache caused by altitude sickness), American ginseng (very useful for relieving extreme fatigue), Quick-acting Jiuxin Pills (not allowed to take more) and Danshen Dropping Pills (for treating cardiovascular diseases). It is effective when altitude sickness symptoms appear). People with strong adaptability to altitude sickness can generally get rid of altitude sickness symptoms within 1-2 days, while those with weak adaptability need 3-7 days. If you can adapt to the taste of butter tea, you can also drink more butter tea, which also has a certain effect on relieving altitude sickness.

Question 2: At what altitude will there be altitude sickness? This mainly depends on one's physical condition. Generally speaking, there is little obvious discomfort below three kilometers, and many people have obvious reactions around four kilometers.

Question 3: How many people will react at high altitude? Altitude sickness, that is, altitude sickness, means that people who are not used to it quickly enter the plateau area above 3000 meters. Due to the decrease of oxygen partial pressure at atmospheric pressure, the body's tolerance to anoxic environment is reduced, and it is difficult to adapt to it, resulting in hypoxia, which leads to a series of altitude disorders. Of course, in addition to the factors of altitude hypoxia, there are also bad weather such as wind, rain, snow, cold and strong ultraviolet radiation, which will aggravate the altitude imbalance and cause different degrees of altitude imbalance. After a period of adaptation, the body can undergo a series of adaptive changes, such as increasing ventilation to make the oxygen utilization rate of tissues reach or approach normal levels; Accelerate the heart rate and increase the pumping capacity of the heart, thereby increasing the amount of bleeding per minute and improving the hypoxia; Increase the amount of red blood cells and hemoglobin to increase the oxygen carrying capacity, so as to ensure the body's oxygen supply. However, some people are sensitive to the partial pressure of hypoxia in the air and have poor adaptability, and a series of symptoms and changes in functional metabolism will occur, which is also called acute altitude sickness. It is divided into acute altitude sickness, high altitude pulmonary edema, high altitude cerebral edema, high altitude retinal hemorrhage and chronic altitude sickness abroad, and it is divided into acute altitude sickness and chronic altitude sickness at home. For individuals, the onset is often mixed and difficult to distinguish, and it is more prominent at a certain stage in the whole onset process. Symptoms of altitude sickness and self-judgment Some people who first entered the 3000m plateau have symptoms such as headache, dizziness, dizziness, tinnitus, general fatigue, difficulty in walking and difficulty in falling asleep within 24 hours. In severe cases, there are symptoms such as abdominal distension, loss of appetite, nausea, vomiting, palpitation, shortness of breath, chest tightness, purple complexion, swelling of lips or face. When these symptoms appear, you should stay at the original height and rest for 3~5 days, or immediately lower the height by hundreds of meters, which can generally return to normal. It is reported that the incidence below 3500m accounts for 37% ~ 5 1%, and the incidence between 3600m and 5000m reaches 50%. This shows that the higher the altitude, the higher the incidence of altitude sickness. Severe altitude sickness is very harmful to human body. So after entering the plateau, if the following symptoms appear, altitude sickness should be considered: 1. Severe headache, palpitation, shortness of breath, chest tightness, loss of appetite, nausea, vomiting, cyanosis of lips and nails. 2. Consciousness trance, cognitive ability plummeted. Mainly in the calculation difficulty. Do a simple addition problem before entering the platform period and record the time spent. When symptoms appear, repeat the same calculation problem. If it takes longer than before, it means that altitude sickness has occurred. 3. hallucinating, feeling warm, and often walking behind others aimlessly. Preventive measures and drugs to relieve symptoms should undergo strict physical examination before entering the plateau. People with severe anemia, hypertension and obvious diseases such as heart, liver, lung and kidney should not enter the plateau. Obese people are generally more prone to mountain sickness because of their high oxygen consumption. When you first enter the plateau, you should reduce physical activity to protect your heart, so you should strictly control the climbing speed. Generally, it is not advisable to climb more than 1000 meters in one day. Two days before entering the plateau and three days after entering the plateau, preventive oral administration of certain drugs can alleviate the symptoms of altitude sickness: acetazolamide 0.25 g, twice a day. Acetazolamide itself has diuretic effect, which is mainly used for cardiogenic edema, brain edema and ankylosing ulcer. Preventive use can alleviate the symptoms of altitude sickness. The side effects of acetazolamide are renal colic, kidney calculi, sulfanilamide crystals, nephrotic syndrome and agranulocytosis (sulfanilamide allergy). Long-term use will cause low potassium ions in the blood, so it is necessary to supplement potassium (you can eat oranges or bananas). People with hepatic coma and renal insufficiency should not take it. Rhodiola is a drug that many people hope to prevent altitude sickness. It has the functions of clearing away heat and toxic materials and removing dampness, and can be used to treat lung heat, pulse heat, plague and limb swelling. In recent years, salidroside has been isolated from Rhodiola in China, which has been proved by experiments to have the effects of strengthening the heart, calming, raising blood pressure and resisting fatigue. Rhodiola extract can be used to resist fatigue, increase physical strength and endurance, and be weak after illness. Whether altitude sickness can be prevented or not has not been found by the author. According to hypoxia, dexamethasone 0.75~6 mg can be added, 2~4 times a day. The main function of this medicine in relieving altitude sickness hypoxia is to increase the content of red blood cells and hemoglobin, thus improving the oxygen carrying capacity. Dexamethasone is a glucocorticoid drug, and the indications must be strictly controlled. Abuse this drug, > >

Question 4: About what altitude is altitude sickness 1000m! Judging by people's adaptability? Maybe it will be 500 meters! It depends on the individual.

Question 5: When the altitude is a few meters, people begin to have altitude sickness. It depends on your physique and the state of the day. If you happen to have a headache or a cold that day, altitude sickness is particularly serious.

Especially at an altitude of more than 3000 meters, don't make a hullabaloo about or run around!

This is my personal experience. I was so excited at that time that I shouted and ran. As a result, I got altitude sickness and began to have a headache.

Question 6: What is the altitude of Diebu? Will there be altitude sickness? Diebu County is a county under the jurisdiction of Gannan Tibetan Autonomous Prefecture in Gansu Province. Located on the eastern edge of the Qinghai-Tibet Plateau, West Qinling, Minshan and Dieshan run through the territory. The terrain is high in the northwest and low in the southeast, with an altitude of 1600 meters to 4920 meters.

There may be altitude sickness, so be prepared.

Question 7: How high the altitude is, there will be altitude sickness. Generally speaking, there will be no altitude sickness, and the altitude is not so terrible. As long as you are in good health, it's no problem below 3500. The first time I went to the plateau, I went 4300 meters and didn't respond.

People with high blood pressure had better not go to the plateau easily, but really go. You'd better go to the hospital for a physical examination and see the doctor's advice before you go. But you said 3200, I don't think it's a big problem.

Question 8: What is the altitude of * *? How to solve altitude sickness? This should be divided into different areas:

* * * More than 3,650 meters above sea level.

The overall terrain of Changdu is high in the northwest and low in the southeast, with the highest elevation of 5,460m, the lowest elevation of about 3 100m and the average elevation of over 3,500m m..

The average elevation of Linzhi is 3 100 meters * * * Xiaojiangnan is the lowest area.

The average altitude in Shannan is about 3700 meters.

The average altitude of Shigatse is more than 4000 meters.

The elevation of Naqu is between 3500 and 4500 meters.

Ali is the highest area with an average elevation of 4500 meters.

I hope it helps you.