Certified Medical-Surgical Registered Nurse Practice Exam

When caring for a patient with a wet-to-dry dressing, what guideline should be followed?

1. The wound should remain moist from the dressing.

2. The wet-to-dry dressing should be tightly packed into the wound.

3. The dressing should be allowed to dry before it's removed.

4. A plastic sheet-type dressing should cover the wet dressing.

The correct answer is: The dressing should be allowed to dry before it's removed.

Choosing to allow the dressing to dry before removal is in line with the purpose of a wet-to-dry dressing technique, which involves using moisture to help debride and clean the wound. As the wet dressing dries, it adheres to the wound, helping to absorb exudate and debris. When the dressing is removed, it brings away the necrotic tissue or slough that has adhered to it, thereby promoting healing. It's important to maintain the integrity of the healing process, and following the guideline of letting the dressing dry allows for effective debridement. This method is particularly used for wounds that require mechanical debridement, as it helps clear away non-viable tissue during dressing changes. In contrast, keeping the wound moist, tightly packing the dressings, or using a plastic cover would not facilitate the intended process of a wet-to-dry dressing. Moisture retention from the dressing could prevent proper debridement, tight packing may impede healing by creating pressure and discomfort, and plastic coverings could promote a moist environment unsuitable for this specific technique.