heat exhaustion
Introduction
Introduction to heat exhaustion Heatstroke failure refers to the loss of excess blood and electrolyte caused by excessive sweat and electrolyte loss caused by sweating. When the weather gets hotter, the more sweat the body sweats. When the sweat is excessively lost, the body begins to lack water. At this time, heatstroke is often prone to occur. In the hot summer months, this condition can occur in everyone, even for the most climate-friendly athletes. Heat exhaustion is caused by water loss (destruction), or in rare cases by salt loss (while wicking, while salt is lost). Thirst is most likely the first symptom, followed by loss of appetite, headache, dizziness, pale face, and a feeling similar to a cold (including nausea and vomiting). In more serious cases, even the heartbeat is accelerated and the attention is dilated. basic knowledge The proportion of illness: 0.005%--0.01% Susceptible people: no specific population Mode of infection: non-infectious Complications: shock
Cause
Cause of heat exhaustion
Environmental factors (65%):
There are many reasons for the exhaustion of heatstroke. Working in a workshop with high temperature operation, if it is poorly ventilated, it is prone to heatstroke; when it is used in agriculture and open air, it is exposed to direct sunlight, and the sun is exposed to sunlight, so that the temperature of the atmosphere Increased again, the human meninges are congested, the cerebral cortex is ischemia and cause heatstroke, and the increase in humidity in the air is likely to induce heat stroke.
Personal physique factor (15%):
In public places, in the family, the crowd is crowded, the heat is concentrated, and the heat is difficult. The heat exhaustion is mainly caused by insufficient peripheral circulation, causing collapse or transient fainting.
Prevention
Heat stroke prevention
1. Carry out hygienic publicity to prevent heat stroke.
2. Exercise properly.
3. Add salty refreshing drinks and nutrition.
4. Improve the working environment and living conditions.
5, pay attention to old, weak, sick, pregnant summer health.
6. Implement the regulations on contraindications for high temperature operation.
Complication
Complications of heat exhaustion Complications
Heatstroke failure can cause excessive loss of salt and water loss due to excessive sweating. It can also be caused by the human body's inability to adapt to the thermal environment, resulting in excessive expansion of peripheral blood vessels, insufficient circulation of blood, collapse, and shock symptoms.
Symptom
Symptoms of Heatstroke Failure Common Symptoms Fatigue, Deficiency, Anxiety, Circulatory Failure, Unconsciousness, Uninfectious Fever, Heat, Skin, Cold, Pale, Sticky, Heat Failure, Shock
Excessive sweating but not timely replenishment of fluid can cause fatigue in summer with fatigue, weakness and anxiety, followed by circulatory collapse and slow and slender pulse; low blood pressure is not easy to detect; skin is cold and pale, sticky; spirit Obstacles, followed by shock-like unconsciousness, core body temperature between 38.3 ~ 40.6 ° C, long-term standing in a high temperature environment to promote mild heat exhaustion (due to blood deposition in the hot-expanded lower extremity blood vessels) symptoms are subnormal Body temperature and simple fainting.
Heatstroke failure that causes circulatory collapse is more difficult than heat stroke to distinguish from insulin shock, poisoning, bleeding or traumatic shock. It usually has a history of exposure to high temperature environment, lack of fluid supplementation, no other visible causes, and response to treatment can be used as a diagnosis. Sufficiently, unless long-term circulatory failure, heat exhaustion is usually short-lived and the prognosis is good.
Examine
Heatstroke failure check
1, blood routine, urine routine, fecal routine.
2. Liver function, renal function, electrolyte and inorganic element detection.
3. Cardiovascular examination.
4. CT examination. The examination is convenient, rapid and safe. The patient can be successfully checked without the patient moving, and it is easy for the patient to accept, and the follow-up is convenient. Especially for the emergency patient, the diagnosis can be made quickly, and it is important to fight for the time to rescue the patient. . In addition, CT can also repeat the examination of the emergency in a short period of time, which is conducive to the observation of the evolution of the lesion.
5. Detection of blood gas and acid-base balance indicators.
Diagnosis
Diagnosis and identification of heat exhaustion
diagnosis
Diagnosis can be based on medical history, clinical symptoms, and laboratory tests.
Differential diagnosis
1, cerebrovascular accident: more common in the elderly, often have a history of hypertension and arteriosclerosis, may have coma or hemiplegia, CT can be a clear diagnosis.
2, Japanese encephalitis: more in the fall, in addition to persistent febrile seizures, coma patients are often accompanied by respiratory failure, laboratory complement fixation test is positive.
3, heat exhaustion should be differentiated from gastrointestinal bleeding, ectopic pregnancy, hypoglycemia.
