Which of the following heat-related conditions can be fatal?

Heat stroke is a severe heat-related condition that can be fatal if not treated immediately. It occurs when the body overheats, usually due to prolonged exposure to or excessive physical exertion in high temperatures. Symptoms include a high body temperature (often above 103°F), confusion, altered mental state, and in some cases, loss of consciousness. Without prompt medical intervention, heat stroke can lead to serious complications, including organ failure and death.

While heat cramps and heat exhaustion can also pose serious health risks, they are typically less severe compared to heat stroke. Heat cramps involve painful muscle spasms due to loss of electrolytes and can be uncomfortable but are not life-threatening. Heat exhaustion is a more serious condition that can lead to heat stroke if not addressed, but it usually presents with more manageable symptoms, such as heavy sweating, weakness, and dizziness. Thus, it is critical to recognize heat stroke's severity, as its immediate treatment is necessary to prevent fatal outcomes.