New York State Basic Emergency Medical Technician (EMT-B) Practice Exam

Which symptom indicates a potential emergency due to hypoglycemia?

1. Unconsciousness

2. Headaches

3. Fatigue

4. Blurry vision

The correct answer is: Unconsciousness

Unconsciousness is a critical symptom that indicates a potential emergency due to hypoglycemia, which is a condition characterized by abnormally low blood glucose levels. When blood sugar drops significantly, the brain does not receive enough glucose to function properly, leading to serious neurological effects, including loss of consciousness. This symptom can develop rapidly and requires immediate medical intervention, often in the form of glucose administration or other treatments to raise blood sugar levels. Other symptoms such as headaches, fatigue, and blurry vision can occur with a variety of conditions and are not specific to hypoglycemia. While these symptoms might be present in someone experiencing low blood sugar, they are not as urgent or severe as unconsciousness, which signifies a more serious and immediate danger. Recognizing unconsciousness as a sign of hypoglycemia can guide responders to act quickly to prevent further complications or irreversible consequences.