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

What is the primary function of extracellular matrix dressings?

1. To absorb excess wound exudate.

2. To provide scaffolding and promote wound healing.

3. To deliver antibiotics directly into the wound.

4. To eliminate necrotic tissue effectively.

The correct answer is: To provide scaffolding and promote wound healing.

The primary function of extracellular matrix dressings is to provide scaffolding and promote wound healing. These dressings are designed to mimic the natural extracellular matrix found in human tissue, which plays a crucial role in supporting cell attachment and migration during the wound healing process. By offering a structured environment, extracellular matrix dressings facilitate the movement of cells required for regeneration, allowing for better tissue integration and repair. The scaffolding provided by these dressings aids in the formation of granulation tissue, encourages angiogenesis (the formation of new blood vessels), and enhances the overall healing environment. This attribute makes them particularly beneficial for chronic wounds and complex injuries where the healing process may be impaired. While other options address various aspects of wound care, they do not highlight the main purpose of extracellular matrix dressings. For example, while some dressings may absorb exudate, the primary role of extracellular matrix dressings focuses more on promoting healing than fluid management. Similarly, delivering antibiotics or eliminating necrotic tissue, although important in the overall wound management context, falls outside the core function of extracellular matrix dressings specifically.