Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is within normal limits . Lung volumes are low . An endotracheal tube terminates approximately 3 cm above the carina and an enteric tube projects over the stomach with tip excluded from the images . Linear opacities at the bases likely represent atelectasis in the setting of low lung volumes . There is no focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
Appropriate positioning of endotracheal and nasogastric tubes .