The National Pressure Ulcer Advisory Panel redefined the definition of a pressure ulcer and the stages of pressure ulcers in 2007, including the original 4 stages and adding 2 stages on deep tissue ...

Pressure ulcers are characterized into four stages dependent on the severity and depth of the lesion (Figure 1). Stage I pressure ulcers involve the superficial skin layer and are characterized by ...

Wound healing involves four stages: homeostasis, inflammation, proliferation, and remodeling. The skin is the body's largest organ and is a barrier to germs, injury, chemicals, and ultraviolet (UV ...