Which of the following is true about wet-to-dry dressings for ulcer treatment?

Wet-to-dry dressings are specifically designed to facilitate the mechanical debridement of necrotic tissue from wounds. When such dressings are applied, the moist environment created by the dressing adheres to the necrotic tissue. As the dressing dries, it becomes more adherent to the wound, and when it is removed, it takes the necrotic tissue with it. This process is beneficial in promoting wound healing by helping to clean the wound bed and allowing for better tissue regeneration.

This technique is most effective for wounds with a significant amount of necrotic tissue that requires removal to support healing. It is essential to recognize the role of these dressings in managing wounds effectively, which is especially pertinent in geriatric patients who often face complex wound care issues.

The other options do not accurately represent the main function or application of wet-to-dry dressings. For example, they might not be suitable for all types of ulcers, particularly those that are fully dry or that require different forms of treatment based on their etiology and stage of healing.