Washington Master Esthetics Practice Exam

What does the presence of swollen lymph nodes typically indicate?

1. Allergic reaction

2. Infection

3. Dehydration

4. Dietary deficiency

The correct answer is: Infection

The presence of swollen lymph nodes typically indicates an infection in the body. Lymph nodes are part of the immune system, and they help filter out harmful substances such as bacteria and viruses. When an infection occurs, the lymph nodes can become active as they produce more white blood cells to fight the invading pathogens. This increase in activity can lead to swelling and tenderness in the lymph nodes. Thus, swollen lymph nodes serve as a signal that the body is responding to an infection or other immune challenge, making it a key indicator of this condition. Understanding this connection is crucial for recognizing signs of infection and determining the appropriate course of action in a clinical setting.