This case study focuses on Sarah Blake, a 76-year-old patient who underwent a right total hip replacement. The essay analyzes her post-operative vital signs, including a drop in blood pressure and rapid pulse, indicating hypovolemia. It explores the pathophysiology of her condition, considering factors such as blood loss and the impact of anesthesia and pre-existing conditions like hypertension and OSA. The study identifies three priority clinical problems: managing hypovolemic shock, addressing wound drainage, and controlling post-operative pain. Nursing goals and interventions are outlined for each problem, including frequent vital sign monitoring, blood transfusions, wound care, and pain management strategies like multimodal analgesia. The essay also details a comprehensive discharge plan, emphasizing medication education, movement limitations, and follow-up care to ensure continuity of care at home. The case study emphasizes the importance of critical thinking and problem-solving skills in nursing practice, providing a valuable resource for understanding and managing post-operative complications.