Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes which results in bronchovascular crowding . Diffuse bilateral airspace opacities are consistent with aspiration of blood in the setting of massive upper GI bleed . Moderate size right pleural effusion with bibasilar atelectasis is grossly unchanged . The cardiomediastinal hilar contours are unchanged . Monitoring and support devices are in the appropriate positions .
    OUTPUT:
    
1 . Diffuse bilateral airspace opacities are consistent with aspiration in the setting of massive upper GI bleed . 2 . Monitoring and support devices are in the appropriate positions .