American Board of Internal Medicine (ABIM) Certification Practice Exam

What dressing type is commonly used for maintaining a moist wound environment in pressure ulcers?

1. Gauze dressings

2. Hydrocolloid dressings

3. Adhesive plastic dressings

4. Foam dressings

The correct answer is: Hydrocolloid dressings

Hydrocolloid dressings are regarded as an effective choice for maintaining a moist wound environment in pressure ulcers due to their unique composition and properties. These dressings are made from materials that form a gel when they come into contact with wound exudate, thereby providing a moist environment conducive to wound healing. This moist environment helps to promote autolytic debridement, which is the body’s natural process of clearing dead tissue, and enhances cell migration and collagen synthesis. Additionally, hydrocolloid dressings serve as a barrier against external contaminants and can protect the wound from secondary infections, which is particularly important in managing pressure ulcers. They are also generally easy to apply and can be left in place for several days, making them a convenient option for both patients and healthcare providers. In contrast, other types of dressings may not maintain moisture as effectively. For example, gauze dressings can wick moisture away from the wound and often require more frequent changes. Adhesive plastic dressings may trap moisture but do not actively manage the wound environment nor facilitate the healing process as well as hydrocolloids. Foam dressings can also maintain a moist environment well, but hydrocolloids provide better adherence and exudate management for specific wound types like pressure