Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable semi-upright chest radiograph was provided . Endotracheal tube has been removed . A nasogastric tube courses below the diaphragm into the stomach . A right internal jugular central venous line tip is at the cavoatrial junction . Median sternotomy wires are intact . Valve replacement is noted . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhoutette is stable . The soft tissues are unremarkable . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
Nasogastric tube below the diaphragm into the stomach . No acute process .