Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two portable AP chest radiographs were obtained . An NG tube has been inserted . The tip is below the diaphragm and loops upwards towards the cardia of the stomach . A prominent air-fluid level is visualized in the stomach . Several loops of dilated small bowel measure up to 7 cm in diameter . The lung volumes are low , accentuating the pulmonary vasculature . Retrocardiac atelectasis is noted . Cardiomegaly is moderate . Mediastinal wires are intact .
    OUTPUT:
    
NG tube below the diaphragm in the expected position of the stomach . Dilated small bowel better seen on accompanying abdominal films .