Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

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What characterizes a stage 3 pressure injury?

Partial-thickness skin loss
Full-thickness skin loss with visible adipose tissue
Superficial skin injury with no tissue loss
Full-thickness skin loss with necrotic tissue

The correct answer is: Full-thickness skin loss with visible adipose tissue

A stage 3 pressure injury is characterized by full-thickness skin loss where adipose tissue is clearly visible. In this stage, the damage extends beyond the dermis into the subcutaneous tissue, and there may be some necrosis of surrounding tissue, but it does not involve muscle or bone. This definition is vital for identifying the appropriate level of treatment and care, as understanding the depth and extent of the injury can guide healthcare professionals in implementing effective pressure injury management practices. Identifying the presence of adipose tissue is crucial in distinguishing it from other stages. Looking at the other options, partial-thickness skin loss refers to stage 2 injuries, while superficial injuries with no tissue loss reflect stage 1 pressure injuries. The reference to full-thickness skin loss with necrotic tissue aligns more closely with a stage 4 injury, which involves deeper tissue damage and may affect muscle and bone.