Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP chest radiograph was obtained . Comparison was made to prior study at 1 :00 a .m . An endotracheal tube has been inserted 5 cm above the carina . An orogastric tube extends inferiorly out of the field of view . Opacity at the right cardiophrenic angle and left retrocardiac space is unchanged . There is also bibasilar linear reticular opacities suggesting chronic lung disease . Lung volumes are low . The aortic arch remains enlarged and calcified .
    OUTPUT:
    
Increasing bibasilar atelectasis and / or consolidation since the prior study at 1 :00 a .m . Appropriate position of endotracheal tube .