Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lung volumes are somewhat low . Overlying EKG leads are present . Allowing for these limitations , the lungs are clear without focal consolidation , large effusion or pneumothorax . The cardiomediastinal silhouette appears normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process