Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright portable view of the chest demonstrates normal lung volumes . No pleural effusion , focal consolidation or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . No pulmonary edema . No intraperitoneal free air is seen .
    OUTPUT:
    
1 . No evidence of free intraperitoneal air . 2 . Clear lungs .