Which sign most strongly indicates systemic infection in a wound?

Which sign most strongly indicates systemic infection in a wound?

• A. Localized redness
• B. Pain only
• C. Itching
• D. Fever and leukocytosis

Answer: (D)

Systemic infection shows through whole‑body responses rather than just changes at the wound. Fever happens when the body’s temperature is raised by pyrogens from pathogens or immune signaling, signaling the central nervous system to upregulate heat production and retention. Leukocytosis reflects a broad mobilization of white blood cells to combat infection, indicating the immune system is responding beyond the local tissue. When these systemic signs appear with a wound, it means the infection has spread or is causing a body-wide inflammatory response. Local signs like redness speak to the area around the wound and don’t prove systemic involvement, and itching isn’t a typical indicator of infection. So fever with leukocytosis best indicates systemic infection.

Systemic infection shows through whole‑body responses rather than just changes at the wound. Fever happens when the body’s temperature is raised by pyrogens from pathogens or immune signaling, signaling the central nervous system to upregulate heat production and retention. Leukocytosis reflects a broad mobilization of white blood cells to combat infection, indicating the immune system is responding beyond the local tissue. When these systemic signs appear with a wound, it means the infection has spread or is causing a body-wide inflammatory response. Local signs like redness speak to the area around the wound and don’t prove systemic involvement, and itching isn’t a typical indicator of infection. So fever with leukocytosis best indicates systemic infection.