Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . Endotracheal tube is seen with its tip located 2 .8 cm above the carinal . A right IJ central venous catheter tip is positioned in the region of the low SVC . Lung volumes are low limiting assessment . No large consolidation or supine evidence for effusion or pneumothorax . Mediastinal contour is difficult to assess due to rotation . Bony structures are grossly intact . Degenerative changes are partially noted in the lumbar spine .
    OUTPUT:
    
Right IJ central venous catheter and endotracheal tube positioned appropriately .