In a patient with ARDS, what position improves ventilation?

A. Supine: Lying flat can worsen ventilation/perfusion mismatch in ARDS, especially in dependent lung regions. B. Prone: Prone positioning improves oxygenation by promoting more even alveolar recruitment and reducing lung compression, enhancing gas exchange in ARDS. C. Trendelenburg: This position (head down) increases risk of aspiration and is not helpful in improving oxygenation in ARDS. D. Sim’s: This is a recovery position, useful in unconscious patients to prevent aspiration, but not indicated for ARDS.