heat exhaustion
Introduction
Introduction to heat exhaustion Heatexhaustion High-temperature environmental labor, the emergence of blood circulation failure. Blood pressure drops, pulse breathing speeds up, sweating a lot, skin becomes cold, blood and intercellular fluid volume decreases, dizziness, collapse and other symptoms. At this time, the body temperature is normal. Physical labor or long-distance running in hot weather may cause heat exhaustion and severe heat stroke. Generally onset, there are dizziness, headache, heart palpitations, nausea, vomiting, sweating, cold skin, low body temperature, blood pressure, paleness, and fainting. Usually, fainting is awake for a while, and generally does not cause circulatory failure. The treatment method allows the patient to lie on his back, drinking water to return to normal blood pressure, without using a booster drug, and patients with cardiovascular disease should be used with caution, so as not to increase heart load and induce heart failure. Precautions should focus on reducing air temperature. basic knowledge Sickness ratio: 0.05% Susceptible people: no special people Mode of infection: non-infectious Complications: diarrhea, nausea and vomiting, fainting
Cause
Cause of heat exhaustion
A lot of sweating in hot weather, although it can prevent the body temperature from rising, but the body loses a lot of water and salt, which will cause the muscles in the legs and body to twitch and the body is weak. If the water and salt are not replenished in time, the condition will deteriorate and the patient may collapse. Other symptoms of heat exhaustion are dizziness, headache, and vomiting. The patient's temperature was normal, the skin was cold and cold, and his face was pale; his breathing and pulse accelerated. Patients with nausea and diarrhea, vomiting, will lose more body fluids, making the situation worse. Move the patient in a cool place, preferably indoors, and then let the patient drink frozen salt water. If the patient is unconscious, set his body to return to the horizontal position, and immediately call the medical staff. Because of the hot weather, sweating, the body lacks water and salt and collapses. (In fact, a kind of shock) tired and weak, the skin is cold and pale (this is the biggest difference), the pulse speed is weak, headache, dizziness and nausea, emotional anxiety, fainting. (The patient loses water, the blood pressure drops, and the blood can't bring enough oxygen to the brain, so it is effective to save the coma).
Prevention
Heat exhaustion prevention
The way to prevent heat exhaustion is to drink at least two cups of boiled water before exercise to confirm the route, distance, terrain and weather of the hike. In case of discomfort, stop and rest as soon as possible; in the summer exercise, wear loose, light, light-colored clothes that are easy to dissipate heat; remember to wear a hat or something with a shade, and prepare more grain and water; One thing to remind and suggest is: don't go alone to climb the mountain! You should be in groups of three or five, so that you can take care of each other. I hope that everyone will also take into account safety when doing sports. Proper heat-resistance training improves heat tolerance and makes people more comfortable with high temperatures. First, through conscious physical exercise, people's heat resistance is enhanced. In the early summer, every morning and evening, walking and running projects are about one hour, so that the body sweats. Second, when the temperature starts to be high, use little or no fan. ,air conditioning. As the temperature gradually increases, the air conditioner is cooled first, the temperature rises above 35 degrees Celsius, and the indoor temperature exceeds 28 degrees Celsius.
Complication
Heat exhaustion complications Complications, diarrhea, nausea and vomiting
Because of the heat, the blood vessels of the lower extremities expand, the blood is deposited, and it is easy to faint when standing. Slow heartbeat, weak pulse, pale and cold skin, cold and slippery; may have mental disorders, nausea and diarrhea, vomiting can cause fluid loss, blood volume reduction, blood pressure drop, may cause collapse or fainting. Severe heat failure complications are less common.
Symptom
Symptoms of heat exhaustion Common symptoms Reduced heat resistance, cold breath, rapid pulse, accelerated dizziness, sweating, collapse, blood pressure
Generally onset, there are dizziness, headache, heart palpitations, nausea, vomiting, sweating, cold skin, low body temperature, blood pressure, paleness, and fainting. Usually, fainting is awake for a while, and generally does not cause circulatory failure. The treatment method allows the patient to lie on his back, drinking water to return to normal blood pressure, without using a booster drug, and patients with cardiovascular disease should be used with caution, so as not to increase heart load and induce heart failure. Precautions should focus on reducing air temperature.
Examine
Heat exhaustion check
Heat exhaustion is mainly for routine examination in the emergency department:
1, summer season, there are exposure to labor in the sun or high temperature environment, long-distance walking, field work history.
2, old, maternal, chronic frail patients can occur under conditions of poor ventilation and excessive fatigue, excessive drinking.
3, headache, dizziness, nausea, and then thirst, chest tightness, pale, cold sweats, limbs are not warm, breathing fast, confusion or coma, weak or slow pulse.
4, blood pressure: low.
5, blood loss: There is a sudden history of massive blood loss, blood routine examination helps identify.
Diagnosis
Diagnosis of heat exhaustion
diagnosis
During the summer season, there are exposures or manual labor in high temperature environments, long walks, and field work history. Old, maternal, chronic frail patients can occur under conditions of poor ventilation and excessive fatigue, excessive drinking. First headache, dizziness, nausea, then thirst, chest tightness, pale face, cold sweats, limbs are not warm, breathing fast, confusion or coma, weak or slow pulse, low blood pressure.
Differential diagnosis
1. Hunger [food] : There is a history of hypoglycemic drugs in patients who have insufficient food or diabetes, and blood glucose measurement helps identify.
2. Blood stripping: There is a sudden history of massive blood loss, and blood routine examination can help identify.
