Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP supine view of the chest was obtained . Endotracheal tube terminates 4 .2 cm above the carina . NG tube loops in the distal part of the stomach with the tip positioned towards the fundus . Cardiomediastinal silhouette is unremarkable . Lungs are clear . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Appropriate positioning of lines and tubes .