Final answer:
Pressure ulcers, also known as bedsores or decubitis ulcers, are mainly caused by constant, long-term, unrelieved pressure on certain bony body parts. Elderly patients who are immobile and have debilitating conditions are most at risk, with hospitals and long-term care facilities implementing preventive practices. If left untreated, pressure ulcers can become infected and potentially fatal.
Step-by-step explanation:
Pressure ulcers, also known as bedsores or decubitis ulcers, are mainly caused by constant, long-term, unrelieved pressure on certain bony body parts. This pressure reduces blood flow to the area, leading to tissue death or necrosis. Elderly patients who are immobile and have debilitating conditions are most at risk for developing pressure ulcers, with hospitals and long-term care facilities implementing preventive practices such as turning patients every few hours. If left untreated, pressure ulcers can become infected and potentially fatal.