Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has been intubated . An endotracheal tube terminates approximately 4 cm above the carina . The lung volumes are low . The cardiac , mediastinal and hilar contours appear not significantly changed . Opacification at the right lung base is non-specific but could reflect atelectasis or pneumonia , and streaky opacification is also noted in the retrocardiac region that is not well assessed . There is no pneumothorax or definite pleural effusion .
    OUTPUT:
    
Status post endotracheal intubation . Basilar opacities , greater on the right than left with low lung volumes , nonspecific findings . Although pneumonia could be considered , atelectasis could explain the findings . Short - term followup radiographs are suggested .