Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is at the upper limits of normal . The mediastinal contours are unchanged . An AA central venous line is seen with its tip at the cavoatrial junction . The lungs are clear . There are no pleural effusions . The initial film obtained at 16 hr and ___ min demonstrates an NG tube in the midesophagus with its tip curving cranially . The second film obtained obtained at 16 hr and ___ min demonstrates the tip of the to straightened out and positioned in the lower esophagus close to the GE junction . A third film obtained at 16 :00 and ___ min demonstrates the tube in the stomach with the last side hole in the stomach .
    OUTPUT:
    
NG tube in adequate position in the stomach .