Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest provided . The intra-aortic balloon pump is high and should be pulled back 3 .0 cm . A Swan - Ganz catheter is unchanged . Lungs are well inflated and grossly clear . No pleural effusion or pneumothorax . Hilar and cardiomediastinal contours are normal .
    OUTPUT:
    
1 . The intra-aortic balloon pump is high and should be pulled back 3 .0 cm . 2 . The lungs are clear .