Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The endotracheal tube is positioned with its tip 4 cm above the carina . An NG tube courses into the upper abdomen just beyond the GE junction . Cardiomediastinal silhouette is prominent likely due to supine portable technique . The lung volumes are markedly low with possible mild bibasilar atelectasis . No supine evidence for a pneumothorax or large effusion .
    OUTPUT:
    
Findings as above . ETT high - riding , please advance by 1 - 2 cm for more optimal positioning . Please refer to subsequent CT torso for further details .