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Anonymous users2024-02-06The correct option for classifying the depth of burns is: at present, China uses the four-degree and quintile-way method.
Burns are tissue damage caused by heat sources (such as flames, hot liquids), chemicals, electric currents, or other energy sources. Burns can be classified into several different degrees, and depending on the severity of the burn, the method and prognosis will also vary. The management of burns is usually carried out by medical professionals and includes cleaning the wound, covering the wound, controlling the infection, providing pain management and **care, etc.
For more severe burns, long-term medical monitoring and ** procedures may be required.
Classification of the degree of burns
1. First-degree burns: First-degree burns only damage the surface layer (epidermis). Symptoms include redness, swelling, pain, and mild scaling, which usually do not leave scarring and can heal on their own within a few days. Shanheng.
2. Second-degree burns: There are two types of second-degree burns. Superficial second-degree burns:
Damage** superficial and part of the dermis. Symptoms include redness, swelling, blisters, pain, and a moist tease on the surface. It usually takes weeks or months to heal completely, and may leave milder scars.
Deep second-degree burns: Damage** to the superficial layer and deeper dermis. Symptoms include red or white, blisters, and noticeable pain.
**May take longer and may leave more severe scarring.
3. Third-degree burns: Third-degree burns damage the superficial layer**, the dermis and possibly subcutaneous tissues. The burned area is black, white, or brown and may be felt because the nerve endings are also damaged. **Usually needed**transplant or other surgery**.
4. Fourth-degree burns: Fourth-degree burns are the most serious type of burns, with damage to more than ** and subcutaneous tissues, and may also damage muscles, bones and internal organs. The burned area is charred and usually requires extensive surgical intervention.
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Anonymous users2024-02-05The severity of burns is determined by complex factors, including the size, depth, location, cause of the burn, whether there are other injuries, the age of the patient and the health status before the injury. Generally, it is mainly divided according to the area and depth of the burn.
1) Minor burns: second-degree burns with a total area of less than 9%.
2) Moderate burns: the total area is between 10% and 29%. or less than 10% of the burn area.
3) Severe burns: the total area is between 30%-49%, or the area of discern burns is between 10% and 19%, or the burn area is less than 30%, but there are one of the following conditions: the general condition is severe or there is shock; compound injuries; Moderate to severe suctioning injuries.
4) Extremely severe burns: the total area is more than 50%, or the area of dish-degree burns is more than 20%.
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Anonymous users2024-02-04Based on the area of your own palm, the area the size of a palm is equivalent to 1% of the body surface area of the human body, which is just an estimate and is not specifically measured.
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The accuracy level of the current transformer is to say that its measurement error (accuracy) is generally ,,,5p, 10p, etc. The special current transformer with s requires high enough accuracy in the load range of 1 120, and the error is less than the specified range when measured by 5 load points; , etc. is generally the measurement coil, the accuracy of the error 20 120 load range is required to be high enough, and the error is generally less than the specified range (the error includes the ratio difference and the angle difference, because the current is a vector, so the size and phase angle difference are required), and the current transformer of 5p, 10p is generally used for relay protection, that is, the compound error is required to be less than a certain value under the short-circuit current, 5p is less than 5, 10p is less than 10; Therefore, the current transformer stipulates different accuracy according to the application, that is, the error accuracy in different current ranges.