Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable supine AP image of the chest . The right IJ central line has been pulled back in the interval , but still terminates in the right atrium . The lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
1 . Right IJ central line terminates in the right atrium . Pullback of 5 cm could be performed to have the tip located in the superior cavoatrial junction , if desired . 2 . No acute cardiopulmonary process .