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

What is a primary advantage of dimethicone moisture barrier products?

1. Highly adherent and protective

2. Non-occlusive and effective for diaphoresis and incontinence

3. Very difficult to apply

4. Best for denuded skin

The correct answer is: Non-occlusive and effective for diaphoresis and incontinence

Dimethicone moisture barrier products are specifically formulated to provide a protective layer on the skin while remaining non-occlusive. This characteristic allows for effective moisture management without trapping moisture against the skin, which could lead to maceration. This is particularly beneficial in conditions such as diaphoresis (excessive sweating) and incontinence, where it is important to maintain skin integrity while allowing the skin to breathe. By forming a barrier that is resistant to moisture, dimethicone helps to shield the skin from irritants and excessive moisture while still allowing air circulation. This dual action is vital for preventing skin breakdown in vulnerable areas. In contrast, highly adherent products may not perform as well in terms of breathability, leading to potential issues like irritation or maceration in similar situations. The other options either emphasize characteristics that may not apply specifically to dimethicone barrier products or suggest applications where these products are not ideally suited. Therefore, the non-occlusive nature combined with their effectiveness in managing moisture-related skin issues establishes the primary advantage of dimethicone moisture barrier products.