Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright AP view of the chest is obtained . Patient rotated to the right , which significantly limits evaluation . The endotracheal tube is seen with its tip located just above the carina . Recommend slight retraction for more optimal position . Lung volumes are low . An NG tube courses into the left upper abdomen , tip excluded from view . Bibasilar atelectasis present . No large effusion .
    OUTPUT:
    
Low position of ET tube , retraction by at least 2 cm is advised . NG tube positioned appropriately .