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

What is a key feature of alcohol free liquid barrier films?

1. They are occlusive

2. They create a strong adhesive bond

3. They form a waterproof barrier

4. They should only be used on denuded skin

The correct answer is: They form a waterproof barrier

The key feature of alcohol-free liquid barrier films being a waterproof barrier is significant in clinical practice. These films provide a protective layer over the skin, effectively sealing out moisture and preventing external contaminants from penetrating the skin's surface. This characteristic is crucial when managing patients with wounds or at risk of skin breakdown because it helps to maintain a suitable environment for healing and protects vulnerable skin from irritants such as bodily fluids. By forming a waterproof barrier, alcohol-free liquid films minimize the risk of maceration in the surrounding skin, which can occur when skin is exposed to excessive moisture. This protective layer is ideal for various patient conditions and can be used on intact or at-risk skin. The fact that these films are alcohol-free also adds an advantage, as they are less likely to cause skin irritation or stinging upon application, making them suitable for sensitive skin areas.