A nurse is prioritizing care for four patients. Which patient should the nurse see first?

A. An acute decrease in oxygen saturation indicates a potential compromise of the airway or gas exchange, requiring immediate intervention to prevent cellular hypoxia. According to the Airway-Breathing-Circulation prioritization framework, respiratory distress takes precedence over stable or educational needs. This patient is at the highest risk for rapid physiological deterioration and systemic organ failure. B. A patient with a healed abdominal incision is considered stable and does not require urgent nursing assessment. A healed wound indicates that the inflammatory and proliferative phases of healing are complete and there is no immediate risk of dehiscence or infection. Seeing this patient first would violate the principle of prioritizing unstable over stable clinical presentations. C. Providing medication education is a critical nursing function but is categorized as a low-priority task when compared to acute physiological instability. Education is a psychosocial and cognitive intervention that can be safely delayed until life-threatening conditions are addressed. In this scenario, the nurse must ensure physical safety before addressing the client's knowledge deficits. D. A slight temperature may indicate a nascent inflammatory process or a mild infection, but it does not represent a systemic emergency. Without other signs of hemodynamic instability or sepsis, this patient remains stable relative to someone experiencing an acute drop in oxygenation. The nurse should address the respiratory compromise before evaluating a low-grade febrile response.