When a chest tube becomes dislodged, what is the primary goal to prevent?

• A. Prevent air from entering the pleural cavity
• B. Prevent infection at the insertion site
• C. Prevent bleeding into the chest cavity
• D. Prevent lung collapse by immediate reinsert

Answer: (A)

When a chest tube becomes dislodged, the immediate risk is air entering the pleural space, which can cause a pneumothorax and compromise lung expansion and oxygenation. Protecting the pleural space from air entry is the top priority because it directly preserves ventilation. The chest tube exists to remove air and fluid to allow the lung to re-expand; if the tube is out, air can rush into the space and worsen or recreate a collapse. The quickest protective action is to apply a sterile occlusive dressing over the site and secure it so air cannot enter, ideally taping with three sides to create a flutter valve that allows air to escape but not come in. Notify the provider and assess the patient’s breathing and oxygenation while preparing for reinsertion or repair as ordered. Infection control and bleeding are important considerations but do not take precedence over preventing air entry in this acute situation.