Which of the following is a symptom of heat stroke?

Heat stroke is a serious medical condition that occurs when the body overheats and can no longer regulate its temperature effectively. One of the hallmark symptoms of heat stroke is hot, red, dry skin. This occurs because, in heat stroke, the body's cooling mechanisms, such as sweating, become ineffective due to the high core temperature. As a result, the skin can appear flushed and will not be moist because the body losses its ability to sweat.

In contrast, cold, clammy skin and excessive sweating are symptoms more commonly associated with heat exhaustion, which occurs before heat stroke. Rapid heartbeat can occur in both conditions; however, the specific symptom that distinguishes heat stroke is the hot, dry skin. Recognizing these symptoms is crucial for timely medical intervention to prevent serious health consequences from heat-related illness.