Final answer:
Among the options provided, a yellow, slough-covered wound bed contributes to delayed wound healing in a stage III pressure ulcer. Granulation tissue, absence of infection, and adequate blood supply are all factors that promote wound healing.
Step-by-step explanation:
The student asked about the factors that contribute to delayed wound healing in a client who has a stage III pressure ulcer. The correct option among the given choices is D) Yellow, slough-covered wound bed. This indicates the presence of non-viable tissue that delays the healing process. In contrast, options A) Presence of granulation tissue, B) Absence of infection, and C) Adequate blood supply to the wound are beneficial to wound healing. Granulation tissue is a part of the healing process, an absence of infection optimizes healing conditions, and an adequate blood supply ensures that necessary nutrients and oxygen are delivered to the wound for repair.