Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . Lungs are clear bilaterally . No free air below the right hemidiaphragm . No pleural effusion or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures appear intact .
    OUTPUT:
    
No acute findings , specifically no free air below the diaphragm .