Summer has arrived, heatstroke events occur frequently in various places, and this time if the person being heatstroke can get the right treatment in time, then it will largely reduce the occurrence of tragic cases. So you need to have a certain degree of understanding of the symptoms of heat stroke, so that you can make measures in an emergency, not to be overwhelmed. A, understanding heatstroke 1, heatstroke determination Heatstroke refers to the body in the hot sun, causing thermoregulatory dysfunction, heat dissipation dysfunction, resulting in heat accumulation caused by high fever, no sweating and central nervous system symptoms mainly syndrome. In daily life, the death rate of heat stroke can be as high as 20%-70%, so in the hot summer, people need to actively prevent and treat heat stroke. 2, environmental factors Heat stroke is more likely to occur in high temperature, high humidity, wind speed is small. According to research, heat stroke is most likely to occur when the average temperature exceeds 30 degrees Celsius for three consecutive days and the relative humidity is greater than 73%. Be aware that sometimes although the temperature is not high, humidity is not large, but due to poor environmental ventilation, but also prone to heat stroke. 3, their own factors susceptible to heatstroke most of the physical lack of physical exercise, lack of sleep, alcohol consumption, hunger and sudden entry into the tourist hot areas and high temperature environment. Some of the heat disorders are also prone to heatstroke, such as excessive obesity, wearing tight, poorly ventilated clothing and pants, congenital sweat gland deficiency, heat rash and taking antidepressants, etc., are important factors that can easily lead to heatstroke. Second, heat stroke “three categories” 1, aura heat stroke patients often feel a lot of sweating, dizziness, dizziness, weakness, nausea, panic, shortness of breath and inattention, disorientation, body temperature is usually less than 37.5 degrees Celsius, when leaving the hot operating environment into a cool and ventilated environment, you can recover in a short time. 2.Mild heatstroke In addition to the aura symptoms, some patients show signs of peripheral circulation failure such as elevated body temperature above 38 degrees Celsius, burning skin, flushed face, pale face, vomiting, wet and cold skin, weak pulse, decreased blood pressure, etc. The body temperature can usually return to normal within 4 hours after rest. 3, severe heat stroke Mild heat stroke is further aggravated by pale skin, cold sweat, weak limbs, fine and rapid pulse, normal or less change in body temperature, faint consciousness or fainting. Severe headache, dizziness, tinnitus, vomiting, flushing, head temperature above 40 degrees Celsius, body temperature generally normal, and coma in severe cases. Continue to develop into high fever, body temperature up to 40 degrees Celsius or more, accompanied by fainting, dry burning skin, headache, nausea, general weakness, fast pulse, confusion, and in severe cases, causing multi-organ damage and death. First aid rules for heatstroke 1, transfer quickly transfer the patient to a ventilated, cool, dry place, make him lie down and unbutton his clothes, loosen or take off his clothes, such as clothes are wet with sweat should be replaced. 2, cooling The patient’s head can be covered with a cold towel, available 50% alcohol, white wine, ice water or cold water for the whole body bath, and then use a fan or electric fan blowing wind to accelerate heat dissipation. Cooling blankets can also be used to give cooling if available. But do not quickly lower the patient’s body temperature, when the body temperature drops below 38 degrees Celsius, to stop all cold compresses and other strong cooling measures. 3, hydration When the patient is still conscious, you can give some cool drinks, and when hydrating, add a small amount of salt or baking soda water. But do not rush to add a lot of water, otherwise, it will cause vomiting, abdominal pain, nausea and other symptoms. 4.Promote awakening If the patient has lost consciousness, you can finger pinch the points such as Renzhong and Hegu to awaken him. If breathing stops, artificial respiration should be implemented immediately. 5.Transfer For patients with severe heat stroke, they must be sent to the doctor immediately. When transporting the patient, use a stretcher to transport the patient, do not make the patient walk, and pay attention to the transport, as far as possible, use ice bags on the patient’s forehead, back of the pillow, chest, elbow fossa and the root of the thigh, and actively carry out physical cooling to protect the brain, heart and other important organs. Every summer when the temperature rises sharply, it is the high incidence of heat stroke, and the occurrence of heat stroke, if not timely and effective treatment, so that the condition worsens, will likely lead to death.