If the drainage system is full or needs emptying, what is the recommended action?

• A. Disconnect the system and pour drainage into a sterile container.
• B. Empty the collection chamber using sterile technique while keeping the system closed; do not disconnect; follow facility protocol; notify clinician if uncertain.
• C. Empty into a separate bottle and reattach.
• D. Add sterile saline to the collection chamber.

Answer: (B)

Keeping a drainage system closed and sterile while emptying is essential to prevent air from entering the chest and to minimize infection risk. When the collection chamber is full, empty it using sterile technique through the designated drainage port without disconnecting the system. Leaving the system closed preserves suction and prevents potential air leaks into the pleural space. Always follow your facility’s protocol for the exact steps, and if you’re uncertain, notify the clinician before proceeding. Disrupting the closed system or adding substances to the chamber can introduce infection, allow air to enter, or interfere with drainage, which is why those approaches are not appropriate.