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

Which material can serve as an additional layer for tunneling wounds?

1. Polyethylene film

2. Damp nonwoven gauze

3. Hydrophilic gel

4. Activated charcoal dressings

The correct answer is: Damp nonwoven gauze

Damp nonwoven gauze is an excellent choice for serving as an additional layer for tunneling wounds because it provides the necessary moisture and promotes a moist wound healing environment. This type of dressing can easily conform to the contours of the wound, allowing it to fill the tunneling area effectively. The dampness in the gauze aids in keeping the wound bed hydrated, which is essential for the healing process and helps prevent the dressing from adhering to the wound, thereby minimizing pain during dressing changes. In addition, using nonwoven gauze can help in the absorption of any exudate, reducing the risk of infection and further complications associated with tunneling wounds. Its construction allows for good airflow, which is beneficial for the healing process while also supporting the body's natural healing mechanisms. Other materials listed do not provide the same level of moisture retention and conformability to address tunneling effectively. Thus, damp nonwoven gauze stands out as the most appropriate option for this specific application.