First aid mastery depends on knowing CPR techniques, recognizing heat stroke symptoms, and implementing structured rehabilitation for fractures and sprains.
Dehydration is the loss of fluid from the body. There are many reasons for dehydration, including heatstroke, strenuous exercise, kidney disease, vomiting and diarrhea, and chronic conditions like diabetes. The symptoms of dehydration include dry lips and mouth, rapid heart rate and decreased urine output.
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An abrasion, also called a scrape or graze, is a wound to the superficial layer of the skin. Abrasions are usually caused by trauma, such as a fall, that grinds or scrapes away the skin surface.
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