Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two supine portable views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is mild perihilar vascular congestion . No pneumothorax is seen . The final image demonstrates ET tube terminating approximately 4 .8 cm above the carina .
    OUTPUT:
    
Endotracheal tube terminates 4 .8 cm above the carina .