A chest tube is commonly attached to what drainage system?

A chest tube is commonly attached to what drainage system?

• A. Oxygen
• B. Small-bore catheter
• C. Needle decompression
• D. Water seal

Answer: (D)

A chest tube is connected to a water-seal drainage system. The water seal acts as a one-way valve: pleural air and fluid can exit the pleural space, but air cannot flow back in, which helps the lung re-expand and prevents air from re-entering the chest. Some setups also include a suction chamber to actively remove air and fluid, but the essential component is the water-seal. Oxygen delivery, small-bore catheters, and needle decompression are not the drainage system used for a chest tube—the water-seal drainage unit is the standard configuration for chest-tube drainage.

A chest tube is connected to a water-seal drainage system. The water seal acts as a one-way valve: pleural air and fluid can exit the pleural space, but air cannot flow back in, which helps the lung re-expand and prevents air from re-entering the chest. Some setups also include a suction chamber to actively remove air and fluid, but the essential component is the water-seal. Oxygen delivery, small-bore catheters, and needle decompression are not the drainage system used for a chest tube—the water-seal drainage unit is the standard configuration for chest-tube drainage.