Which of the following signs may indicate heat exhaustion?
a. Hunger, fatigue, and back pain
b. Muscle cramps, fatigue, and lightheadedness
c. Lethargy, thirst, nausea, dry skin
d. Overexcitability, inability to sleep
B. In the progression of heat exhaustion, lightheadedness and muscle cramps are later in the progression and signal the likelihood of heat stroke occurring if not removed from the heat and treatment provided.
