Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi upright view of the chest . An endotracheal tube is seen with its tip residing approximately 3 .9 cm above the carina . Lung volumes are low . Allowing for this , there is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
No acute intrathoracic process . ETT positioned appropriately .