This essay presents a nursing case study of Peter Mitchell, a 52-year-old patient admitted with poorly controlled diabetes, obesity, sleep apnea, hypertension, and depression. The essay utilizes the clinical reasoning cycle to analyze the patient's situation, including his medical history, vital signs, and social factors. The analysis identifies obesity and uncontrolled diabetes as the primary health issues, leading to the establishment of two care priorities: weight reduction and blood glucose control. The essay proposes both pharmacological interventions, such as orlistat, metformin, and anti-hypertensive medications, and non-pharmacological interventions, including lifestyle modifications like diet and exercise, and psychological support for depression. The importance of regular monitoring and reflection on the care process is also highlighted, emphasizing the need for a patient-centered approach to improve Peter's health-related quality of life.