Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest radiograph ___ at 21 :34 is submitted .
    OUTPUT:
    
Endotracheal tube has its tip 2 .5 cm above the carina . Nasogastric tube and left internal jugular central line are unchanged in position . The heart remains stably enlarged . Lung volumes are low with worsening perihilar edema and persistent left lower lobe collapse . There are likely layering effusions . No pneumothorax , although the sensitivity to detect pneumothorax is diminished given supine technique .