Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right subclavian approach dual lumen catheter is unchanged in position with the tip terminating at the low SVC . Cardiomediastinal silhouette and hilar contours are normal . Lungs are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Right subclavian dual lumen catheter unchanged in position with tip terminating at the low SVC .