Symptoms of moderate hypoxia: chest tightness, shortness of breath and shortness of breath when climbing above the second floor; Sitting for a long time will cause backache. Poor sleep, dreaminess, high blood pressure, blood lipid and blood sugar, weakened resistance and easy to catch a cold.
The performance of high hypoxia: I usually feel chest tightness, shortness of breath and palpitation, which is aggravated during activities. The heart is often uncomfortable and will suddenly be flustered; Memory loss, mental fatigue and fatigue. Dizziness and black eyes when standing up after squatting or sitting still; Temple pain, tinnitus, dizziness, pale face. I feel backache and arteriosclerosis after getting up early.
Acute hypoxia is characterized by dyspnea, cyanosis of skin, loss of consciousness and even coma.
The manifestations of extreme hypoxia: sudden death caused by myocardial infarction, cerebral infarction, heart failure, tracheal congestion and phlegm resistance.
Brain hypoxia: The oxygen consumption of brain accounts for about 23% of the total oxygen consumption of human body. The brain will be restless after a few seconds of hypoxia, and severe hypoxia will cause central depression, ataxia, confusion and brain edema. After 4 minutes of hypoxia, cells will undergo irreversible necrosis, disturbance of consciousness, convulsion, coma and death.
Hypoxia of heart: The oxygen consumption of heart accounts for about 18% of human oxygen consumption. Mild hypoxia can enhance myocardial contraction, accelerate heart rate, increase cardiac output and increase or decrease blood pressure. Severe hypoxia leads to the decrease of blood pressure and heart rate, which can lead to myocardial necrosis, heart failure, arrhythmia, shock and even cardiac arrest.
Retinal hypoxia: causes dizziness and decreased vision.
Hypoxia in the blood: people will feel flustered and their hearts will beat faster. Easy to suffer from hypertension, coronary heart disease, thrombosis, myocardial infarction, angina pectoris and so on. At the same time, the immune function of human body is decreased and the disease resistance is weakened.
Renal hypoxia: it can cause renal insufficiency, oliguria and anuria, and easily induce urinary system infection.
Pulmonary hypoxia: respiratory movement is enhanced and breathing is accelerated and deepened when there is mild hypoxia. Severe hypoxia can inhibit the respiratory center and lead to dyspnea. Respiratory rhythm disorder, cyanosis, laryngeal edema, pulmonary edema, arterial contraction, increased pulmonary vascular resistance and arterial hypertension.
Hypoxia of liver: causing liver function damage, liver edema and so on. Chen Huisheng, chief physician of PLA 40 1 Hospital, female, born in August 2005, 1954, bachelor degree ... He is currently the director and chief physician of the Department of Respiratory Medicine of 40 1 Hospital of the People's Liberation Army, and the only medical expert in Shandong Province who can resect respiratory tumors with laser. . He was honored as an outstanding producer in party member and jinan military area command, an outstanding producer in party member and Beihai Fleet, an advanced individual in Shandong Province in fighting against SARS, an outstanding scientific and technological cadre in Qingdao Naval Base, Women's Day on March 8th, a famous doctor in Qingdao, and the first "Top Ten Health Guards in Qingdao". The proposition of healthy community in this issue is: the relationship between breathing and health. Ordinary people only know that breathing quality should be improved, and there is no scientific basis. In order to solve this problem, the author came to the 40 1 Hospital of the People's Liberation Army as scheduled and met the attending physician, Director Chen Huisheng. Because of a temporary operation, the meeting with director Chen was postponed for more than an hour. After the meeting, Director Chen was very excited because of the successful operation. She talked about the benefits and effects of oxygen inhalation in Kan Kan. The topic began with her familiar respiratory diseases. Q: Director Chen, I found that there are more people suffering from respiratory diseases in spring. Is spring the season of high incidence of this disease? A: That's right. In the living environment of modern people, due to the influence of some external factors such as air pollution, industrial pollution and abnormal climate, respiratory diseases are gradually increasing. In addition, pathogens in modern diseases, such as bacteria, viruses, mycoplasma and their drug resistance, make these respiratory diseases more difficult to cure in a short time. For allergens, there are allergens such as pollen besides air pollution and the stimulation of industrial harmful substances. Especially in Qingdao, the climate is warm and humid, which will lead to the growth of mold. So mold is also a very important allergen. Coupled with the humid climate, some seasonal allergens, such as pollen, are not easy to dissipate and dilute. Therefore, air pollution, bacterial resistance and seasonal allergens make respiratory diseases more common. Q: If you have respiratory diseases, you will find it difficult to breathe. Is this a symptom of hypoxia? Why do people lack oxygen? How to deal with it? Answer: It is easy to feel out of breath after getting respiratory diseases. It is generally proved that there is hypoxia or relative hypoxia. If this happens, you should go to the hospital first to check what the problem is. For example, if it is an acute attack of chronic bronchitis, it is usually accompanied by real hypoxia, such as emphysema and pulmonary fibrosis. However, the lung gas exchange function is not good, and it is more prone to real hypoxia. Hypoxia is generally divided into three types: mild, moderate and severe, generally accompanied by mild to severe respiratory insufficiency and respiratory failure. These can be confirmed by scientific examination in the hospital. There are many reasons for hypoxia: common cold, hypertension, cardiovascular diseases and other diseases will all cause hypoxia. Then, if the patient has symptoms of chest tightness and suffocation, he should take oxygen first. There is also air pollution, and there is another important reason for working in a closed environment-smoking will cause hypoxia. Therefore, if conditions permit, oxygen inhalation equipment should be available at home, which is not only an effective non-drug treatment for the body, but also very healthy. Q: Who needs oxygen? What are the symptoms of hypoxia? Answer: First of all, the elderly and patients need oxygen, and then some people who often work in a closed environment also need oxygen. For example, the more white-collar workers who work in big cities, the more they will often feel tired, chest tightness, palpitation, dizziness, irritability, insomnia and stress, and the brain will be overloaded for a long time, which will cause relative hypoxia. These people, if conditions permit, should still ensure that they breathe low-concentration oxygen for at least one hour every day, which is certainly beneficial. Generally speaking, the elderly have different degrees of hypoxia symptoms. For example, many women go shopping during holidays and feel headache at the end of the day. In fact, this is a kind of relative hypoxia. Then there are some patients with angina pectoris and myocardial infarction. We should give them oxygen first. Increase oxygen content in blood and improve blood circulation. In fact, we can also judge for ourselves in our daily life. We feel suffocated and have severe chest tightness. We need to breathe hard and can't move. I feel short of breath when I move, and my face, lips and nails turn purple. These are typical symptoms of hypoxia. Q: What are the hazards of hypoxia? A: Hypoxia will first harm the brain, the "headquarters" of our whole body. Brain hypoxia can cause headaches, dizziness and other symptoms. Over time, memory will decline. With the gradual aggravation of arteriosclerosis, there may even be cerebral embolism, cerebral hemorrhage and arteriosclerosis. A very important reason is lack of oxygen. Older people are more prone to brain atrophy, dementia, emotional disorders and other diseases at an early stage. So long-term oxygen inhalation will reduce and slow down the occurrence of these diseases. It also has a good protective effect on the heart. Q: How is low concentration oxygen defined? A: The oxygen content in the air is about 2 1%, so the so-called low-concentration oxygen means that the oxygen content is below 35%. For people who need long-term oxygen inhalation for health care, this concentration of oxygen will not only cause any harm to the body, but also be beneficial. Compared with low concentration oxygen, there will be medium concentration and high concentration oxygen. If high concentration oxygen is inhaled continuously for more than 10 hour, pulmonary fibrosis will easily occur. Unless some seriously ill patients need first aid, they need to absorb high concentration of oxygen. Generally, in daily health care, low-concentration oxygen can be absorbed. Q: Why do the elderly generally lack oxygen? A: Hypoxia in the elderly is not only a problem that the respiratory tract and lungs can't exchange gas normally, but also patients with cardiovascular diseases will suffer from hypoxia. Because people with cardiovascular diseases cannot effectively deliver fresh blood to the whole body, they are prone to hypoxia, and all organs in the whole body are hypoxic. Therefore, if the elderly suffer from arteriosclerosis, coronary heart disease and high blood pressure, the body function will decline, and the blood vessels will not supply oxygen well, coupled with hypoxia, it is particularly prone to tissue hypoxia. Mainly because with the growth of age, the body of the elderly is in a state of low metabolism, and the function of the body begins to decline, so the ability to use oxygen also declines. Even a common cold can make the elderly lack oxygen. Therefore, it is necessary for the elderly to take oxygen regularly when conditions permit. Q: Is it addictive to insist on taking oxygen every day? A: Scientific and reasonable methods of using oxygen are not addictive. Breathing oxygen every day will make you feel comfortable. On the contrary, many people ignore this problem. Some young people will find it very troublesome and can't persist. On the contrary, it is very necessary for many elderly people who have begun to age to insist on oxygen inhalation. So sticking to low concentration oxygen is not addictive at all. Text/Cao Qian