Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable chest radiograph demonstrates an endotracheal tube tip positioned 3 .4 cm from the level of the carina . An NG tube is in place , positioned over the stomach , but the tip is not seen . Retrocardiac and left lower lobe atelectasis is little changed and results in leftward mediastinal shift . There are small pleural effusions . Hilar adenopathy is unchanged .
    OUTPUT:
    
1 . Expected position of support devices . 2 . Little change in left lower lobe and retrocardiac airspace opacity and small pleural effusions .