Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the recent study from approximately 3 hr prior , there has been interval placement of an NG tube looping in the stomach with tip at the level of the fundus . Otherwise low lung volumes have decreased with associated left base atelectasis / scarring . No other relevant change . Several chronic left - sided rib fractures .
    OUTPUT:
    
Appropriate positioning of an NG tube .