Winter safety what to fear? Carbon monoxide is the most deadly! A gust of north wind heralds the entry of the winter season. Every year when winter comes, carbon monoxide poisoning follows. According to previous years, CO poisoning and even death will continue to occur. Carbon monoxide is fiercer than a tiger, so pay attention to prevention is the most reliable! Winter is coming, so be careful about CO poisoning! I. CO (carbon monoxide) poisoning principle Carbon monoxide is a colorless, odorless gas, inhaled by the body’s lungs, and the affinity of the body’s hemoglobin is 300 times higher than oxygen, so that the hemoglobin loses the ability and role of carrying oxygen, resulting in cell death, especially the most serious impact on the cerebral cortex. Therefore, the human body is easily exposed to poisoning without realizing and death, which is a very dangerous gas. Clinical manifestations of carbon monoxide poisoning Clinical manifestations are mainly for hypoxia, and some patients with acute CO poisoning will be comatose again after awakening from coma, after a pseudo-healing period of 2 to 30 days, and symptoms such as dementia and woody psychosis, tremor paralysis syndrome, sensory-motor disorders, also known as acute CO poisoning late onset encephalopathy. 1.Light poisoning time is short, showing the early symptoms of poisoning: headache and dizziness, palpitations, nausea, vomiting, limb weakness, and even brief fainting, but generally still conscious, inhaling fresh air and leaving the poisoned environment, the symptoms disappear quickly and generally do not leave after-effects. 2.Medium-sized Poisoning time is a little longer and can lead to deficiency or coma. The skin and mucous membranes show the cherry red color characteristic of CO poisoning. If resuscitation is timely, the patient can wake up quickly and recover completely within a few days, and there are generally no sequelae. 3.Heavy If found too late and inhaled too much CO, the patient will be in deep coma, various reflexes will disappear, urinary and fecal incontinence, blood pressure will drop, shortness of breath, and death will occur in serious cases. Generally, the longer the coma, the more serious the prognosis, often leaving dementia, memory and comprehension loss and other sequelae. Diagnosis of carbon monoxide poisoning 1. The conditions and exposure history of CO production. The cause of poisoning is often due to poor indoor ventilation in winter when fires are being built for heating, and people in the same room also show signs of poisoning, and the use of water heaters is also an important cause of CO 2. Clinical manifestations of CO poisoning such as dizziness, headache, weakness, palpitations, nausea, vomiting and blurred vision; in severe cases, cherry red skin, accelerated respiration and pulse, increased tension in the limbs, impaired consciousness, deep coma, etc. 3. Exclude other diseases such as common cerebrovascular accidents. First aid for carbon monoxide poisoning 1.If someone is found to have carbon monoxide gas poisoning, open doors and windows quickly, turn off gas cans, fire sources and other dangerous sources, do not turn on the power supply, such as open range hoods, turn on lights, etc., to avoid explosions. 2.Transfer the patient to a place with fresh air. 3.Keep the airway open. Untie the collar and lie flat, remove the dirt from the mouth and nose. 4.Correct oxygen deficiency quickly. If possible, carry out high concentration of oxygen, especially hyperbaric oxygen chamber treatment can quickly correct tissue hypoxia, which is the most important and effective treatment measure for CO poisoning patients. 5. If respiratory and cardiac arrest is found, cardiopulmonary resuscitation (CPR) is performed immediately. V. Prevention of carbon monoxide poisoning 1. There should be safety settings (such as chimneys, small ventilation windows, wind hoppers, etc.) when using coal fires indoors, and the installation of coal stove chimneys should be reasonable, and coal stoves without chimneys should be placed outdoors at night. 2, do not use the elimination of water heaters, such as direct vent water heaters and flue type water heaters, both of which are expressly prohibited by state regulations on the production and sale of water heaters; do not use overdue service water heaters; installation of water heaters is best to ask professionals to install, do not install, remove, modify their own combustion appliances. Do not close the bathroom doors and windows when showering in winter, do not take too long to shower. 3, when driving, do not let the engine idle for a long time; car at a standstill, do not open the air conditioning machine for too long; even in driving, should often open the windows, so that the air inside and outside the car convection. Feel uncomfortable that stop and rest; driving or riding in an air-conditioned car such as feeling dizzy, dull, limb weakness, should promptly open the window to breathe fresh air. 4, in places where carbon monoxide may be installed carbon monoxide alarms. Carbon monoxide alarm is specifically used to detect the concentration of carbon monoxide in the air device, can exceed the concentration of carbon monoxide in a timely manner when the alarm.