Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Interval intubation noted with the endotracheal tube tip residing approximately 6 cm above the carina . The lungs are mostly clear aside from mild lower lung atelectasis . No large effusion or pneumothorax . Cardiomediastinal silhouette appear stable . Bony structures are intact .
    OUTPUT:
    
Endotracheal tube in place with its tip 6 cm above the carina . Advancement of endotracheal tube by 1 - 2 cm may result in more optimal positioning .