Which statement describes a common symptom of infection?

The statement that describes a common symptom of infection is that swelling and disordered function may occur. This is primarily due to the body's inflammatory response, which is a natural reaction to infection. When the body detects pathogens, such as bacteria or viruses, the immune system triggers processes that lead to increased blood flow and the release of various immune substances. This response results in swelling in the affected area, which often causes discomfort or pain and may interfere with normal function, such as mobility or the operation of bodily systems.

Increased appetite, pale skin, and brittle nails are not typically associated with infection. Increased appetite is often a sign of good health or recovery, pale skin can indicate various conditions but isn’t specifically a symptom of infection, and brittle nails can be related to nutritional deficiencies or other health issues rather than infectious processes. Therefore, the presence of swelling and alterations in function are strong indicators of an ongoing infection.