First Aid

Suffering from exposure to high temperature, what are the methods to prevent heatstroke?

The weather is getting hotter. Don't think that only workers will suffer from high temperature exposure. Many white-collar workers who need to work in the field can't help but withstand the sun and become a high-risk group of summer heat stroke. Today, let's share the symptoms and solutions of heatstroke.

1. Heatstroke can be divided into three types according to the severity of illness

1. Threatened heatstroke

In the high temperature environment, the heat stroke person has dizziness, dizziness, tinnitus, nausea, chest tightness, palpitation, weakness, thirst, sweating, inattention, and numbness of limbs. At this time, the body temperature is normal or slightly higher, generally no more than 37.5. C。 This is a sign of heatstroke. If we take timely measures, such as leaving the hot spot quickly, we can prevent the development of heatstroke.

2. Mild heat stroke

In addition to the symptoms of threatened heatstroke, there are also early manifestations of respiratory and circulatory failure, such as flushing or pallor, nausea, vomiting, shortness of breath, sweating, hot or cold skin, weak pulse, increased heart rate and decreased blood pressure. C。

3. Severe heatstroke

In addition to the symptoms of threatened heatstroke and mild heatstroke, it is accompanied by syncope, coma, spasm or high fever.

4. Severe heatstroke can be further divided into

Heat accumulation in the body. Heat stroke patients may have drowsiness, coma, flushing, dry and hot skin, no sweat, shortness of breath, increased heart rate, blood pressure drop, high fever, body temperature can exceed 40 degrees.

Heat stroke failure, that is, there is no large amount of heat accumulation in the body. Heatstroke person may appear pale, the skin is wet and cold, the pulse is weak, the breath is shallow and fast, syncope, coma, blood pressure drops and so on.

Heatstroke spasm: that is, it has no direct relationship with high temperature, but occurs after strenuous labor and exercise. As a result of sweating, drinking water only without adding salt can reduce blood sodium and chloride, and blood potassium can also be reduced, resulting in paroxysmal painful muscle spasm (commonly known as cramp), thirst, less urine, but normal body temperature.

Sunstroke: that is, strong sunlight on the head, resulting in increased intracranial temperature. Heat stroke patients have severe headache, dizziness, nausea, vomiting, tinnitus, dizziness, irritability, and mental disorder. In severe cases, coma occurs, and the body temperature can be slightly increased.

2. Emergency rescue for heatstroke

Away from the high temperature environment, quickly transfer the heatstroke to a cool and ventilated place for rest. Lie on your back, head up, and unbutton.

Fluid supplement: if the heat stroke person is conscious and does not have nausea and vomiting, they can drink cool drinks containing salt, tea, mung bean soup, etc., so as to reduce the temperature and replenish the blood volume.

Artificial cooling: electric fan can be used for cooling, but it can't directly blow to patients to prevent cold.

Ice compress: cold compress can also be applied to the head. Ice bags should be placed in the head, armpit, groin and other large blood vessels (put ice cubes, popsicles, water ice cream, etc. into plastic bags and sealed tightly), and can be bathed with cold water or 30% alcohol until the skin turns red. The body temperature was measured every 10-15 minutes.

Prevention measures of heatstroke in the field and key points of emergency treatment afterwards

When outdoor athletes go to the mountains, they often chase after them, but if they are exposed to the strong sunlight for a long time, the body heat and temperature can not be fully distributed, which makes the body temperature rise. The body temperature regulating center in the brain is damaged and stops working. This is heatstroke.

Heatstroke patients have headache, high fever, vomiting or fainting, which can cause death sometimes. Therefore, field activity personnel should not pay attention to prevention and first aid. It is better to wear sunshade cap and prevent exposure to the sun for too long.

In case of heatstroke, first aid should be given as soon as possible to avoid collapse and death. First, move the patient to a cool place, loosen or take off his clothes, let him lie comfortably, and put his head and shoulders up with things.

Cover his head with a cold and wet towel. If there is a water bag or ice bag, it is better. Soak a sponge in alcohol or a towel in cold water to wipe the body. Fan as cold as possible to reduce his body temperature to normal.

Finally, measure his body temperature or observe the patient's pulse rate. If it is below 110 per minute, it means that the body temperature can still be tolerated. If it reaches more than 110, stop using various cooling methods. After observing for about 10 minutes, if the body temperature continues to rise, it will be cooled again.

After regaining consciousness, salt water was supplied but no stimulant was given. In addition, according to the patient's comfort level, the coverage is provided.

3. Pay attention to prevent heatstroke

1. Travel to avoid the hot sun

Remember to prepare sun protection equipment when you go out in summer. It's better not to walk in the hot sun from 10:00 to 16:00, because the sunshine is the strongest in this period, and the possibility of heatstroke is 10 times as much as usual! If you have to go out at this time, you must do a good job of protection, such as playing a sunshade, wearing a sunshade cap, wearing sunglasses, if possible, it is best to apply sunscreen; prepare sufficient water and drinks. In addition, in the hot summer, heatstroke prevention and cooling drugs, such as shidishui, Longhu Rendan and Fengyoujing, must be kept at hand to prevent emergency use. When going out, cotton, hemp and silk fabrics should be selected as far as possible, and less chemical fiber clothing should be worn, so as to avoid heat dissipation and heat stroke when sweating a lot.

The elderly, pregnant women, people with chronic diseases, especially those with cardiovascular diseases, should reduce their outdoor activities as much as possible in the hot season.

2. Don't wait for thirst to drink

Don't wait for thirst to drink water, because thirst has indicated that the body has been short of water. The ideal is to drink 1.5 to 2 liters of water a day, depending on the temperature. When sweating more, you can add some salt water appropriately to make up for the loss of salt due to sweating. In addition, the human body is easy to lack potassium in summer, which makes people feel tired and tired. Potassium tea is an excellent summer drink.

3. Diet

Vegetables eaten in summer, such as lettuce, cucumber and tomato, have high water content; fresh fruits, such as peaches, apricots, watermelons, melons, etc., have a moisture content of 80% to 90%, which can be used to supplement water. In addition, dairy products can not only replenish water, but also meet the nutritional needs of the body. Secondly, people who can not avoid working in high temperature environment should properly supplement the drinks containing potassium, magnesium and other elements.

4. Get enough sleep

In summer, the days are long and the night is short, the temperature is high, the human body metabolism is exuberant, the consumption is also big, easy to feel tired. Adequate sleep, can make the brain and body system are relaxed, not only conducive to work and study, but also to prevent heatstroke measures. The best time to go to bed is 22:00 to 23:00, and the best time to get up is from 5:30 to 6:30. When sleeping, pay attention not to lie under the air outlet and electric fan of the air conditioner, so as to avoid suffering from air conditioning disease and heat cold.


Put wet towel on the body parts directly exposed to the sun, such as neck and arms, to help cool down the body. In addition, when working in a high temperature environment, many people will ignore that the body temperature has risen to too high, or even neglect that the body has mild heatstroke symptoms. Therefore, we must pay more attention to whether the body temperature has been overheated and whether it has Symptoms of heatstroke.

Related posts

Prevention of cervical spondylosis from daily life, prevention should choose a suitable pillow

Novel coronavirus is recommended for the prevention of coronavirus disinfectant

Will blood donation affect the body? The matters needing attention before and after blood donation