Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest provided . The intra-aortic balloon pump is approximately 6 cm below the upper most part of the aortic arch , advancement by 4 cm is recommended . Swan - Ganz catheter has been retracted , now terminating in the right ventricle . Lungs are otherwise clear .
    OUTPUT:
    
1 . Low intra-aortic balloon pump , advancement by 4 cm is recommended . 2 . Swan - Ganz catheter terminates in the right ventricle .