Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Low lung volumes somewhat limit the assessment . A catheter in the soft tissues of the mid back noted with catheter extending to the region of central spinal canal . There is mild right basal atelectasis . No convincing evidence for pneumonia or edema . No large effusion or pneumothorax . The cardiomediastinal silhouette appears unchanged . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Limited due to low lung volumes , no acute findings .