Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable chest radiograph demonstrates an endotracheal tube , its tip which projects approximately 4 cm above the level of the carina in appropriate position . Enteric tube descends the thorax in uncomplicated course , it s tip out of the field - of - view although below the level of the diaphragm . The lungs are clear bilaterally . There is no large pleural effusion or pneumothorax . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Appropriate positioning of support devices without evidence of complications .