Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable supine chest radiograph is provided . The endotracheal tube is in the mid trachea , 4 .5 cm above the carina . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax . There is streaky atelectasis at the left lower lobe . Cardiomediastinal silhouette is normal . The bones are intact .
    OUTPUT:
    
No acute cardiopulmonary process . ET tube in appropriate position .