This essay addresses the case of Eleanor Wilson, a 58-year-old woman, focusing on the pathophysiology of hypovolemia following surgery. It examines the patient's symptoms, including low blood pressure, high heart rate, and reduced oxygen saturation, linking these to the decrease in body fluid volume. The essay explores the causes of hypovolemia, such as high urine output and wound drainage, and discusses the body's physiological compensatory mechanisms. Furthermore, it prioritizes nursing interventions, including fluid administration and oxygen regulation, based on the ABCDE approach. Nursing goals are established for volume resuscitation, oxygen saturation, blood pressure management, and lifestyle improvements, emphasizing the importance of health education and multidisciplinary support. The essay details the rationale behind the chosen interventions, such as Hartmann's solution for fluid administration, and highlights the need for continuous patient monitoring to prevent complications. Overall, the essay provides a comprehensive overview of the nursing care required for a post-operative patient experiencing hypovolemia, emphasizing the importance of assessment, intervention, and goal-oriented care.