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

How would you describe a stage 2 pressure injury?

1. Full thickness skin loss

2. Non-blanchable erythema

3. Partial thickness skin loss with exposed dermis

4. Intact skin with a blister

The correct answer is: Partial thickness skin loss with exposed dermis

A stage 2 pressure injury is characterized by partial thickness skin loss involving the epidermis, dermis, or both. This can manifest as a shallow open ulcer with a red or pink wound bed, as well as the possibility of a blister that may be intact or already opened. The presence of exposed dermis distinguishes a stage 2 pressure injury from other stages, as it indicates that the damage has penetrated through the epidermis but has not extended to the deeper tissues, which would characterize a more severe stage of injury. In the context of pressure injuries, this definition emphasizes that while the injury has progressed beyond superficial damage, the integrity of deeper structures such as fat and muscle remain intact. This understanding is crucial for effective assessment and management, as stage 2 injuries require careful treatment to promote healing while preventing further deterioration.