A nurse is assessing a client who was brought to the emergency department with an ankle injury. Which of the following manifestations should the nurse identify as localized inflammation of the tissues?

A. Palpable pedal pulses are an indicator of adequate arterial perfusion to the distal extremity rather than an inflammatory response. While the inflammatory process involves increased blood flow (hyperemia), pulses specifically measure the pressure wave generated by cardiac output through the arterial system. Strong pulses are a positive finding for vascular integrity but do not define localized tissue inflammation. B. Sanguineous drainage refers to fresh bloody discharge and typically indicates active bleeding or vascular disruption rather than the standard inflammatory cascade. While inflammation can involve the leakage of fluid into the interstitial space, this is usually serous or serosanguineous. The presence of pure blood suggests a traumatic breach of the vessel walls rather than localized cellular inflammation. C. Localized warmth, or calor, is one of the five cardinal signs of inflammation caused by increased blood flow to the injured area. Chemical mediators like histamine and bradykinin cause vasodilation, bringing more warm blood from the core to the superficial tissues. This physiological response is intended to deliver leukocytes and nutrients to the site of injury to begin the repair process. D. A full range of motion is a normal musculoskeletal finding and is generally absent in the presence of acute inflammation. Inflammation typically causes pain (dolor) and swelling (tumor), which lead to a temporary loss of function or restricted movement in the affected joint. Regaining full range of motion usually indicates that the acute inflammatory phase has resolved or was never present.