Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , portable supine . Lung volumes are low but the lungs are clear . The hilar and cardiomediastinal contours are normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal . The endotracheal tube lies 4 .6 cm above the carina . A nasogastric tube courses through the esophagus , into the stomach , and terminates on the right side , likely in the gastric antrum or first part of the duodenum .
    OUTPUT:
    
Low lung volumes , no acute process .