Jerry is bedridden due to a fractured femur and has developed a decubitus ulcer. What is a decubitus ulcer (common name and description) and what may have caused it to occur? How are these generally prevented (provide at least two prevention methods)? Describe the stages used to grade the progression of these ulcers.

Decubitus ulcer or pressure sore occurs as a result of prolonged bed ridden status and immobility. Continuous friction of skin, moisture, poor hygiene, pressure of body over bony prominences etc leads to this type of ulcer.

Fracture of femur is a serious condition that requires prolonged period of immobility and bed rest to heal the broken fragments. In absence of precautionary measures and careful monitoring, such patients' may develop pressure sore.