Oklahoma Applicators License Core Practice Exam

What common symptom might indicate a person is experiencing heat stress?

1. Increased heart rate

2. Headache and nausea

3. Blurred vision

4. Improved concentration

The correct answer is: Headache and nausea

The symptom of headache and nausea is commonly associated with heat stress, as these indicators reflect the body's response to excessive heat exposure. When a person suffers from heat stress, their body struggles to regulate temperature effectively, which can lead to dehydration and electrolyte imbalances. Headache arises from dehydration, either due to direct fluid loss from sweating or insufficient fluid intake. Nausea can also occur due to the body’s distress and the gastrointestinal system responding to the stress it is under. These symptoms serve as critical warning signs that alert individuals to take preventive actions, such as seeking cooler environments, hydrating, and resting. Recognizing these symptoms can help in mitigating more severe heat-related illnesses, such as heat exhaustion or heat stroke.