Which of the following is NOT a sign of wound infection?

In the context of wound infections, the common signs typically include redness, pain, and swelling. These symptoms are indicative of the body's inflammatory response to infection.

Redness around a wound occurs as blood flow increases to the area, which is part of the healing process but can also indicate infection. Pain is a signal that the body sends when there is inflammation and potential infection, as it heightens awareness of the affected area. Swelling occurs due to the accumulation of fluids and immune cells that are activated in response to infection.

In contrast, increased energy is not associated with wound infection. In fact, one might typically expect decreased energy levels due to the body's resources being directed toward fighting the infection and healing the wound. Therefore, identifying increased energy as a sign of infection is incorrect since it contradicts the common physiological responses observed during an infection. This makes it clear that increased energy does not align with the associated symptoms of wound infection.