Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was obtained . The lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The endotracheal tube is satisfactorily positioned , 3 .5 cm above the carina . Nasogastric tube courses into the stomach with side hole at the level of the GE junction , can be advanced 5 - 7 cm for more optimal positioning . Numerous radiodensities project over the upper abdomen but may be external as they were not present on the prior examination .
    OUTPUT:
    
No acute intrathoracic process . Nasogastric tube with side hole at the level of the GE junction and can be advanced 5 - 7 cm for optimal positioning .