Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The patient has been intubated and the tip of the endotracheal tube is at the carina directed towards the right mainstem bronchus . Retraction by at least 2 .5 cm is recommended for more optimal positioning . An NG tube courses into the left upper quadrant . Bibasilar atelectasis noted . Otherwise no change .
    OUTPUT:
    
ET tube positioned low in the trachea at the carina . Please retract by at least 2 .5 cm for more optimal positioning . NG tube positioned appropriately . Bibasilar atelectasis .