Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube is in the proximal trachea approximately 5 .8 cm above the carina . The lungs are well expanded . There is no focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Endotracheal tube in the upper trachea , which can be advanced by 1 - 2 cm for more optimal positioning .