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

When using petrolatum moisture barrier products, what is a key consideration regarding its application?

1. Adheres strongly to the skin

2. Creates a thick layer for protection

3. Can interfere with absorption if excess is applied

4. Ineffective for liquid stool management

The correct answer is: Can interfere with absorption if excess is applied

Choosing the correct answer highlights the importance of understanding how petrolatum moisture barrier products function in clinical practice. When excess petrolatum is applied, it can create a barrier that prevents the skin from absorbing essential moisture and nutrients. This excessive application can lead to skin irritation or other complications because the skin cells may not be able to breathe effectively or absorb any beneficial treatments that might be applied subsequently. Furthermore, while petrolatum is designed to provide a protective barrier against moisture, its effectiveness can be compromised if too much is used, as it may create a seal that traps other substances against the skin, potentially leading to breakdown. Understanding the delicate balance in application is key to optimizing skin integrity and patient comfort.