Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph is obtained with the patient in the supine position . Tip of NG tube ends at the level of the diaphragm in the lower esophagus . The cardiomediastinal contour is stable . The lungs remain clear . No significant pleural effusions and no pneumothorax .
    OUTPUT:
    
Tip of NG stops just short of the stomach and needs to be advanced .