Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lung volumes are somewhat low . Right IJ access dialysis catheter is new in the interval with its tip projecting over the expected level of the lower SVC . The lung volumes are low . The lungs appear clear without convincing signs of pneumonia or overt edema . No large effusions or pneumothorax . Cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
Dialysis catheter positioned appropriately . No acute intrathoracic process .