This assignment focuses on a case study of Mrs. Miller, an elderly woman experiencing physical and cognitive decline, self-care deficit, and impaired social interaction. The clinical reasoning cycle is used to develop a nursing care plan that prioritizes restoring interaction with the community and attachment with her daughter. The plan involves ensuring participation in social and physical activities and instilling coping mechanisms. This case study highlights the importance of considering functional consequences and biological changes in patient care and using various theories and models to inform decision-making.