Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable frontal view of the chest was performed . An endotracheal tube has been placed , terminating 2 .7 cm above the carina . The NG tube has been repositioned and now terminates within the stomach . A significant amount of free intra-abdominal air is again noted . The lung volumes remain low with bibasilar atelectasis . There is no pneumothorax .
    OUTPUT:
    
1 . Satisfactorily positioned endotracheal tube and NG tube . 2 . Large amount of free intra-abdominal air .