Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi upright view of the chest . There has been interval placement of a right subclavian central venous catheter with its tip in the mid to low SVC . Endotracheal and orogastric tubes are unchanged . No pneumothorax . Pulmonary opacities unchanged .
    OUTPUT:
    
Appropriately positioned right subclavian catheter .