Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP radiograph of the chest demonstrates an endotracheal tube its tip which terminates approximately 9 cm above the level of the carina . This should be advanced approximately 4 cm for more appropriate positioning . An enteric tube descends the thorax in an uncomplicated course , it s tip which projects over the left upper quadrant . A right central line is identified , it s tip at the upper right atrium . Lung volumes are low . Heart size appears within normal limits . Mediastinal and hilar contours are unremarkable . No overt pulmonary edema , large pleural effusion , or pneumothorax . Visualized osseous structures are without an acute abnormality .
    OUTPUT:
    
Endotracheal tube terminates approximately 9 cm above the level of the carina . For more appropriate positioning , tube should be advanced approximately 4 cm . No pneumothorax . Right central venous catheter tip over the right atrium .