Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A new endotracheal tube terminates 6 cm above the carina . A nasogastric tube courses through the stomach and inferiorly beyond the film . Moderate left and small right layering pleural effusions are unchanged . Moderate cardiomegaly and central venous congestion persist . There has been slight improvement in moderate interstitial and airspace pulmonary opacities . Persistent retrocardiac opacity could represent atelectasis or consolidation .
    OUTPUT:
    
1 . Endotracheal and nasogastric tubes in standard position . 2 . Slight improvement in moderate pulmonary edema . 3 . Left lower lobe atelectasis or consolidation .