Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A semi-upright frontal view of the chest was obtained portably . The carina is not well seen , but the endotracheal tube is directed towards the right main stem bronchus . A nasogastric tube follows the expected course , although the tip is below the inferior level of the image . Low lung volumes result in bronchovascular crowding . Right linear atelectasis is seen . Mild opacity in the right upper lobe may represent atelectasis or early infection . Heart size is within normal limits . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . The carina is not well visualized , but the endotracheal tube is directed towards the main stem bronchus and could be be retracted to avoid right bronchial intubation . 2 . Mild right upper lung opacity may represent atelectasis or early infection . Follow up is recommended . Finding # 1 is discussed with Dr . ___ at 4 :45 a .m . ___ upon discovery .