Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP semi-upright view of the chest was obtained . The endotracheal tube terminates approximately 1 .6 cm above the carina with the patient 's neck flexed and should be pulled back by approximately 1 cm for optimal placement . NG tube is subdiaphragmatic . Heart is normal size and cardiomediastinal contours are unremarkable . Lung volumes are low and mild basilar atelectasis is noted . Lungs are otherwise clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Endotracheal tube is too low and should be pulled back by 1 cm for optimal placement .