Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable chest radiograph was obtained . Chest and mediastinal drains have been removed . There is no pneumothorax . Lung volumes are low . Atelectasis has decreased . There is no new consolidation or effusion . The sternal wires are intact . Pacing leads are in unchanged positions .
    OUTPUT:
    
No pneumothorax status post chest tube removal .