Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP portable view of the chest was obtained . Lungs are fully expanded and clear . The cardiomediastinal silhouette , hila contours , and pleural surfaces are normal . There is no pleural effusion or pneumothorax . There is no subdiaphragmatic air .
    OUTPUT:
    
No acute cardiopulmonary process or subdiaphragmatic air .