Certified Wound Care Nurse (CWCN) Practice Exam

What type of dressing promotes moist wound healing by forming a viscous gel?

1. Collagen dressing

2. Hydrocolloid dressing

3. Wet-to-dry dressing

4. Foam dressing

The correct answer is: Hydrocolloid dressing

Hydrocolloid dressings are specifically designed to promote moist wound healing by utilizing a unique composition that forms a viscous gel when in contact with wound exudate. This gel serves multiple purposes: it helps to maintain a moist environment that is conducive to healing, supports autolytic debridement (the body's natural process of removing non-viable tissue), and provides a protective barrier against external contaminants and bacteria. The gel formation is a key feature of hydrocolloid dressings that distinguishes them from other types of dressings. Their adhesive nature allows for secure placement and retention over the wound, which can be particularly beneficial in managing chronic wounds or those with moderate exudate. Overall, the ability to create a moist environment while absorbing excess fluid is instrumental in facilitating faster and more effective healing processes.