Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable frontal supine view of the chest was obtained . The patient is status post endotracheal tube placement with tip approximately 1 .8 cm above the carina . NG tube tip is below the diaphragm but not fully imaged . The cardiac silhouette is likely accentuated by low lung volumes and the AP supine technique . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . Linear left basilar opacity likely represents atelectasis . There is no large effusion or pneumothorax .
    OUTPUT:
    
1 . Appropriate positioning of all support devices . 2 . No acute intrathoracic abnormality .