Which statement about milking chest tubes is correct?

Which statement about milking chest tubes is correct?

• A. It improves drainage by increasing flow
• B. It should be performed routinely
• C. It is generally contraindicated because it disrupts pleural space pressures
• D. It treats infection

Answer: (C)

Milking a chest tube is not a technique to improve drainage; it’s avoided because it disrupts the delicate pressure balance in the pleural space. The chest tube system is designed to drain under controlled pressures—either gravity or suction—to keep intrapleural pressures stable. Manually squeezing or “milking” the tube creates sudden, excessive pressure changes that can injure pleural tissues, increase bleeding into the chest, worsen air leaks, or dislodge clots. There’s no proven benefit to drainage from routine milking, and the potential harms outweigh any perceived gain. Milking does not treat infection; managing infection involves appropriate antibiotics and source control, not manipulating the chest tube.

Milking a chest tube is not a technique to improve drainage; it’s avoided because it disrupts the delicate pressure balance in the pleural space. The chest tube system is designed to drain under controlled pressures—either gravity or suction—to keep intrapleural pressures stable. Manually squeezing or “milking” the tube creates sudden, excessive pressure changes that can injure pleural tissues, increase bleeding into the chest, worsen air leaks, or dislodge clots. There’s no proven benefit to drainage from routine milking, and the potential harms outweigh any perceived gain. Milking does not treat infection; managing infection involves appropriate antibiotics and source control, not manipulating the chest tube.