Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 04 :46 is submitted .
    OUTPUT:
    
The endotracheal tube has its tip 11 cm above the carina . Advancement by approximately 5 - 6 cm is recommended to place the tip at the thoracic inlet . House staff are aware as subsequent imaging confirms satisfactory positioning . There has been interval appearance of layering left effusion with retrocardiac consolidation suggestive of collapse of the left lower lobe . A superimposed infectious process in the left lower lung can not be excluded . In addition , there is opacification at the right lung base suggestive of volume loss with at least partial collapse of the right lower and middle lobe . A superimposed infectious process can not be excluded . No pneumothorax . No pulmonary edema .