Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right subclavian catheter ends in the distal SVC . Sternotomy wires and mediastinal clips are unchanged . There is no free air under the diaphragm . There is no focal consolidation , pleural effusion or pneumothorax . There are mild degenerative changes of the thoracic spine . The cardiomediastinal contours are normal .
    OUTPUT:
    
No acute cardiopulmonary process . No free air .