Final answer:
Pressure ulcers, also known as bedsores, are caused by constant pressure on bony areas, resulting in tissue necrosis. Contributing factors include immobility and reduced blood flow. Preventive measures include relieving pressure points and regular repositioning.
Step-by-step explanation:
Pressure ulcers, also known as bedsores or decubitus ulcers, are caused by constant, long-term, unrelieved pressure on certain bony body parts. Contributing factors to pressure ulcer formation include immobility, reduced blood flow, and tissue necrosis. This condition is most common in elderly patients who are immobile or have debilitating conditions. To prevent pressure ulcers, it is important to relieve pressure points and turn patients regularly. Failure to treat and remove necrotized tissue can lead to severe infections and potentially fatal consequences.