Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph provided . No free air is seen below the right hemidiaphragm . The lungs appear clear . Cardiomediastinal silhouette is normal . No pneumothorax or effusion is seen . No bony abnormalities . Clips in the right upper quadrant noted .
    OUTPUT:
    
No acute intrathoracic process . No signs of free air .