Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Comparison is made with the next preceding similar study obtained 11 hours earlier during the same day . The patient remains intubated , the ETT seen to terminate in the trachea 5 cm above the level of the carina . This is not significantly different from the position and encountered on the previous study . No pneumothorax has developed . The previously described right subclavian approach central venous line also unchanged . Status post sternotomy with evidence of old bypass surgery as before .
    OUTPUT:
    
Unchanged ETT position in trachea .