Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal portable view of the chest demonstrates endotracheal tube positioned 7 cm above the carina . Right - sided chest tube is in place . Lung volumes are low . Bibasilar opacities most likely represent atelectasis . No pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is top normal . No pulmonary edema .
    OUTPUT:
    
ET tube terminates 7 cm above the carina . Advancement by 4 cm is recommended . Findings and recommendations discussed with Dr . ___ at 4 :45 p .m . , ___ by phone at the time of discovery .