Which of the following is a sign of heat stroke?

Heat stroke is a severe condition that occurs when the body's temperature regulation fails, leading to a rise in core body temperature often exceeding 104 degrees Fahrenheit (40 degrees Celsius). This can lead to serious complications if not treated promptly. One of the key signs of heat stroke is confusion, which is indicative of the impact high temperatures have on brain function. When the body overheats, it can cause neurological disturbances, which manifest as confusion, altered mental status, or even unconsciousness.

While other symptoms like excessive sweating, elevated heart rate, and frequent urination may occur in the context of heat-related illnesses, they are more characteristic of heat exhaustion and not definitive signs of heat stroke. In heat stroke, the body might actually stop sweating as it progresses, leading to dry skin, and while elevated heart rate can occur, the confusion is a more direct indicator of the life-threatening nature of the condition. Understanding these distinctions is crucial for quickly identifying and responding to heat stroke.