Certified Wound Ostomy Nurse (CWON) Practice Test

What characterizes the inflammatory response in relation to pressure ulcers?

1. Tissue remains unresponsive

2. Vessels remain dilated and may not lead to ulcers if pressure is relieved

3. Immediate necrosis of the tissue

4. Formation of a fluid-filled blister

The correct answer is: Vessels remain dilated and may not lead to ulcers if pressure is relieved

The characterization of the inflammatory response in relation to pressure ulcers emphasizes the body's physiological reactions to tissue damage caused by prolonged pressure. When pressure is applied to an area, especially over bony prominences, it disrupts the normal blood flow and leads to tissue ischemia. The inflammatory response aims to restore homeostasis and repair the tissue. When pressure is relieved, the inflammatory response leads to vasodilation, which increases blood flow to the affected area. This process is crucial for delivering oxygen and nutrients essential for tissue repair. If the pressure is alleviated in a timely manner, the dilated vessels can help prevent the progression to pressure ulcers by restoring perfusion and allowing for healing, rather than leading directly to the tissue breakdown associated with pressure ulcers. In contrast, the other options do not accurately reflect the nature of the inflammatory response in this context. Tissue unresponsiveness does not contribute to healing or recovery, immediate necrosis suggests irreversible damage, and while fluid-filled blisters can form as part of skin injury responses, they do not characterize the broader inflammatory response associated with pressure ulcer development. The nuances of the body’s healing responses illustrate the importance of timely intervention in preventing skin breakdown and ulcer formation.