Which of the following interventions would be most likely to prevent the development of acute respiratory distress syndrome (ARDS)?

A. Smoking cessation improves long-term respiratory health and decreases the risk of chronic lung diseases such as COPD and lung cancer. However, ARDS is an acute inflammatory lung injury, typically triggered by severe illness, trauma, sepsis, or massive transfusions. Smoking status does not acutely prevent ARDS from developing in critically ill patients. B. While maintaining electrolyte balance is essential for cellular and cardiac function, potassium levels do not have a direct preventive effect on ARDS. Electrolyte monitoring supports general critical care but does not influence the pathophysiology of acute lung injury. C. Monitoring for hypercapnia is a reactive measure to detect respiratory compromise, but it does not prevent ARDS. It may help in early recognition of respiratory failure once it begins, but it cannot stop the initial inflammatory cascade or alveolar injury that causes ARDS. D. ARDS often develops secondary to shock or hypoperfusion, where decreased circulating volume leads to systemic inflammation, increased capillary permeability, and pulmonary edema. Timely fluid resuscitation maintains adequate tissue perfusion, preserves oxygen delivery, and reduces the risk of alveolar damage and progression to ARDS. Proper fluid management also helps prevent organ hypoxia and multi-organ dysfunction, which are common contributors to ARDS development.