Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph is obtained . There is interval placement of an NG tube that is located below the diaphragm with the tip not clearly visualized . Heart is top normal size and cardiomediastinal contours are unchanged . Lungs are well expanded with evidence of mild pulmonary vascular congestion . Small bibasilar atelectasis . No significant pleural effusions and no pneumothorax .
    OUTPUT:
    
1 . Tip of NG tube is below the level of the diaphragms , but exact location can not be established due to underpenetration . Abdominal or repeat chest radiograph with increased penetration and lower centering could be obtained to assess tip location if clinically indicated . 2 . Mild pulmonary vascular congestion .