Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable view of the chest demonstrates low lung volumes . Endotracheal tube terminates 4 .6 cm above the carina . The orogastric tube is positioned within the stomach . There are diffuse bilateral airspace opacities . There is minimal blunting of the left costophrenic angle , suggestive of a trace pleural effusion . No pneumothorax is seen . Mild perihilar vascular congestion is noted . Otherwise , hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is thickening of the right minor fissure . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
1 . Appropriately positioned endotracheal and orogastric tubes . 2 . Diffuse bilateral airspace opacities most likely reflecting moderate to severe pulmonary edema , with small bilateral pleural effusions .