PSI Barbering Practice Exam

What are the four classic signs of inflammation?

1. Redness, heat, swelling, pain

2. Nausea, vomiting, fatigue, fever

3. Cough, fever, fatigue, pain

4. Itching, redness, swelling, fever

The correct answer is: Redness, heat, swelling, pain

The four classic signs of inflammation are redness, heat, swelling, and pain. These signs are the body's natural response to injury or infection, and they serve important roles in the healing process. Redness occurs due to increased blood flow to the affected area, which is part of the body's inflammatory response. Heat is similarly a result of increased blood flow and is often noticeable at the site of injury or infection. Swelling happens when fluids and white blood cells leak into the tissue, leading to accumulation in the area and resulting in a noticeable swelling. Pain is typically due to inflammation triggering nerve endings, making the area more sensitive as part of the protective response. In contrast, the other options discuss symptoms that are not directly associated with classical inflammation. For instance, nausea, vomiting, fatigue, and fever can be signs of illness or systemic reactions but do not reflect the localized signs of inflammation. Similarly, coughing and generalized fatigue indicate different conditions, while itching, though it can be a symptom related to some inflammatory responses, does not encompass the classic signs as correctly as the four mentioned above.