Psychiatric Technician Practice Exam

Which of the following is a sign of acute inflammation?

1. Fever

2. Redness

3. Pain

4. Swelling

The correct answer is: Redness

Redness is a sign of acute inflammation due to the increased blood flow to the affected area. When tissues become inflamed, the body responds by dilating blood vessels to allow for more blood to flow in. This heightened circulation brings immune cells to the site of inflammation, which helps in the healing process. The redness often accompanies other symptoms such as swelling, heat, and pain, all of which are part of the classic signs of inflammation. This physiological response is essential as it signals that the body is working to repair itself and fend off possible infections or injuries.