Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates 7 .5 cm from the carina . OG tube courses into the stomach and off the view of the film . The lungs are clear of opacities concerning for infection , however , retrocardiac atelectasis is present . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . ET can be advanced for better positioning . Findings were discussed with ___ at 8 :10 AM .