A client's stump is healing after a below-the-knee amputation, and the client asks the nurse detailed questions about the healing process. What step does the nurse describe when teaching about the inflammatory phase of wound healing?

Wound healing after a surgical procedure such as a below-the-knee amputation occurs in a predictable sequence of phases: hemostasis, inflammation, proliferation, and remodeling. The inflammatory phase is the early response that follows immediately after injury and focuses on controlling bleeding and initiating immune defense. It is characterized by vascular and cellular events that prepare the wound for tissue repair and prevent infection. Understanding these stages helps patients recognize normal healing progression. Rationale: A. Remodeling of collagen fibers occurs in the final phase of wound healing, not during inflammation. This phase involves strengthening and reorganizing collagen to increase tensile strength of the healed tissue over time. It can last for months to years, leading to scar maturation and improved structural integrity of the wound site. B. Vasoconstriction, platelet aggregation, and fibrin deposition represent the initial inflammatory (hemostasis) phase of wound healing. Immediately after injury, blood vessels constrict to reduce blood loss, platelets aggregate to form a clot, and fibrin stabilizes the clot matrix. This process also provides a scaffold for later immune cell migration and tissue repair. C. Contraction of the wound edges occurs during the proliferative phase of healing, primarily mediated by myofibroblasts. This process reduces wound size by pulling the edges together, helping to close the defect. It does not occur during the inflammatory phase, which is focused on hemostasis and immune activation. D. Development of collagen, blood vessels, and connective tissue is part of the proliferative phase of wound healing. During this stage, fibroblasts produce collagen, and angiogenesis forms new capillaries to supply oxygen and nutrients. This phase builds new tissue to replace the temporary clot formed earlier in the healing process.