Heat exhaustion

Heat exhaustion is also called heat exhaustion, and its pathogenesis is mainly due to heat exhaustion which can also be accompanied by excessive sweating, water loss and salt loss. The human body is not adapted to the thermal environment, causing excessive fluid and electrolyte loss to cause peripheral blood vessels to dilate and inadequate circulating blood volume, which results in diseases such as low blood volume and electrolyte imbalance. It often occurs in the elderly, children and patients with chronic diseases. In severe thermal stress, insufficient circulation capacity is caused by excessive loss of body fluids and sodium. Presented as hyperhidrosis, fatigue, weakness, dizziness, headache, nausea, vomiting, and muscle spasms, with obvious signs of dehydration: tachycardia, orthostatic hypotension, or syncope. The temperature increased slightly, and there was no obvious central nervous system injury. According to the severity of the disease, the examination showed increased hematocrit, hypernatremia, mild azotemia, and abnormal liver function. If the treatment is not timely, it can develop into heat radiation disease.

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