National Physical Therapy Examination (NPTE) Practice Exam

Why might a foam-based dressing be used on a healing pressure injury with significant exudate?

1. To prevent eschar formation

2. To prevent desiccation

3. To prevent maceration

4. To prevent infection

The correct answer is: To prevent maceration

A foam-based dressing is particularly useful for a healing pressure injury with significant exudate because it provides a moist environment that encourages healing while managing fluid effectively. The structure of foam dressings allows for the absorption of excess exudate, which helps to prevent maceration of the surrounding skin. Maceration occurs when skin becomes overly moist and breaks down, leading to further complications and delayed healing. Furthermore, the cushioning effect of foam dressings can help protect the wound from additional trauma and pressure, which is especially important in areas prone to pressure injuries. While the dressing may also contribute to preventing infection and maintaining moisture, the primary role in this case focuses on managing the significant exudate to avoid skin breakdown and maceration.