Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left internal jugular approach dual lumen catheter tip terminates in the high right atrium . Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . Lungs are clear . Pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormality .