Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 05 :39 is submitted .
    OUTPUT:
    
Endotracheal tube has its tip at the thoracic inlet . The right subclavian PICC line is unchanged in position . A nasogastric tube is seen coursing below the diaphragm with the tip not identified . Stable layering bilateral effusions with patchy bibasilar airspace opacities consistent with compressive atelectasis . There has been interval improvement in the mild interstitial edema . Overall cardiac and mediastinal contours are likely unchanged given patient rotation on the current study .