Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP semi-erect portable view of the chest was obtained . There has been interval placement of an endotracheal tube , which terminates approximately 4 .5 cm above the level of the carina . Lung volumes remain low . Large cardiomediastinal silhouette is stable . There is evidence of persistent moderate volume overload . No evidence of pneumothorax .
    OUTPUT:
    
Endotracheal tube in appropriate position , terminating approximately 4 .5 cm above the level of the carina .