Which of the following is NOT a sign of heat exhaustion?

The correct choice highlights that a body temperature of 105°F or higher is not a sign of heat exhaustion. In fact, this temperature is indicative of heat stroke, a more severe condition that requires immediate medical attention. Heat exhaustion is characterized by elevated body temperatures, but they generally range from 100.4°F to 104°F, along with symptoms such as heavy sweating, dizziness, weakness, nausea, and headaches. Recognizing this distinction is crucial for proper assessment and response to heat-related illnesses. Understanding the signs of heat exhaustion helps ensure timely and appropriate measures to prevent progression to heat stroke, which can be life-threatening.