Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates approximately 5 cm from the carina . There are worsening bilateral alveolar opacities with a predominantly basilar distribution concerning for ARDS . No pleural effusion or pneumothorax is seen . The heart size is normal . Mediastinal contours are unchanged .
    OUTPUT:
    
1 . Endotracheal tube in standard position . 2 . Rapid interval worsening of diffuse bilateral alveolar opacities concerning for ARDS .