Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: One portable AP upright view of the chest . Endotracheal tube ends 4 .5 cm from the carina . The lungs are clear . No pleural effusion or pneumothorax . Cardiac , mediastinal , and hilar contours are normal . NG tube tip is out of view .
    OUTPUT:
    
ET tube ends 4 .5 cm from the carina . Otherwise , unremarkable examination of the chest .