Why is a follow-up chest radiograph recommended after chest tube removal?

• A. To monitor blood pressure.
• B. To confirm lung re-expansion and ensure no recurrent pneumothorax or fluid re-accumulation.
• C. To decide when to remove the chest tube.
• D. To measure oxygen saturation.

Answer: (B)

After removing a chest tube, a follow-up chest radiograph is done to verify that the lung has re-expanded and to check for any recurrence of air (pneumothorax) or re-accumulation of fluid in the pleural space. Removing the tube can allow a previously managed air or fluid collection to return if healing isn’t complete, so imaging provides a visual check of the pleural space and lung inflation. This helps determine whether further intervention is needed or if safe observation is appropriate. It isn’t used to monitor blood pressure or to measure oxygen saturation, which are tracked with vital signs and other tests. It also isn’t used to decide when to remove the tube—that decision is made before removal based on clinical status and prior imaging showing resolution.