PAEA Surgery End Of Rotation (EOR) Practice Exam

What role does poor blood supply play in pressure ulcers?

1. It accelerates healing

2. It is irrelevant to ulcer development

3. It contributes to difficulty in healing

4. It makes ulcers visible

The correct answer is: It contributes to difficulty in healing

Poor blood supply plays a significant role in pressure ulcers primarily by contributing to difficulty in healing. Adequate blood flow is essential for delivering oxygen and nutrients to the tissues, which are critical for healing and cellular repair. When blood supply is compromised, the affected tissues are deprived of these necessary elements, leading to an increased risk of tissue necrosis and a delayed healing process. In the case of pressure ulcers, areas that experience continuous pressure can sustain damage when blood flow is reduced, either due to the pressure itself or other factors, such as immobility or underlying health issues. This impaired circulation leads to insufficient perfusion, which hinders the body’s natural repair mechanisms and increases susceptibility to infection. Consequently, ulcers may not only take longer to heal but can also worsen over time. Understanding this relationship clarifies the importance of maintaining good circulation and promptly addressing any factors that could contribute to poor blood flow in at-risk individuals to prevent the development and exacerbation of pressure ulcers.