Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New ET tube has tip ending at 2 .3 cm from carina . Lung volume is still low , but without consolidation or nodule suspicious for pneumonia . There is no pleural effusion or pneumothorax . Heart size is accentuated by low lung volume .
    OUTPUT:
    
New ET tube ends at 2 .3 cm from carina , exam is otherwise unchanged since ___ .