Certified Wound Care Nurse (CWCN) Practice Exam

What type of dressing is appropriate for a patient with a pressure ulcer over the ischial tuberosity?

1. Hydrocolloid dressing

2. Alginate dressing

3. Foam dressing

4. Transparent film dressing

The correct answer is: Alginate dressing

The appropriate dressing for a patient with a pressure ulcer over the ischial tuberosity is an alginate dressing. Alginate dressings are highly absorbent and are particularly effective in managing moderate to heavy exudate, which is common in pressure ulcers due to the dynamic nature of wound healing and potential for fluid accumulation. These dressings are derived from seaweed and form a gel when in contact with wound exudate, providing a moist environment that is conducive to healing and also facilitating autolytic debridement. In addition to managing exudate, alginate dressings can help to protect the wound from outside contaminants and provide a barrier against bacterial infection, which is critical in pressure ulcer care, especially in areas that experience significant pressure, such as the ischial tuberosity. This area is prone to increased pressure and shear forces, making effective moisture management vital in the care plan. In contrast, while hydrocolloid dressings are useful for superficial wounds with minimal exudate, they may not be as effective for deeper wounds or those with moderate to heavy drainage. Foam dressings, although good for managing exudate and providing cushioning, may not adhere as well to deeper ulcerations and can sometimes lead to maceration