Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP semi-erect chest radiograph ___ at 10 :30 is submitted .
    OUTPUT:
    
Endotracheal tube has its tip 3 cm above the carina . A nasogastric tube is seen coursing below the diaphragm with the tip projecting over the proximal stomach . The bilateral pleural effusions appear smaller , but this likely is related to differences in patient positioning . Stable bibasilar opacities favoring atelectasis , although aspiration or pneumonia should also be considered in the correct clinical setting . No evidence of pulmonary edema . No pneumothorax , although the sensitivity to detect pneumothorax is diminished given semi-erect technique . Overall cardiac and mediastinal contours are stable .