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

• A. Dizziness
• B. Unconsciousness
• C. Normal LOC
• D. Tachycardia

Answer: (B)

Unconsciousness is not a typical sign of heat exhaustion. In heat exhaustion, people usually feel dizzy or lightheaded and have a fast heartbeat, sometimes with sweating, weakness, or nausea, but they remain conscious and oriented. Losing consciousness signals a more severe condition—heat stroke—and requires urgent medical help. If someone becomes unconscious, move them to a cooler place, begin cooling efforts, and call emergency services while you monitor their breathing. Dizziness and tachycardia are common features of heat exhaustion, while a normal level of consciousness is typical, making unconsciousness the red flag that points to a dangerous progression.