Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable AP view of the chest provided . The endotracheal tube is seen with its tip located approximately 4 .2 cm above the carina . The NG tube courses inferiorly , though the tip is not clearly visualized . The lung volumes are low , though aside from scattered mild atelectasis the lungs appear clear . Cardiomediastinal silhouette appears grossly unremarkable . No bony abnormalities .
    OUTPUT:
    
Appropriately positioned endotracheal tube . A nasogastric tube tip not visualized .