Which statement describes the correct placement for draining pleural fluid via chest tube?

Which statement describes the correct placement for draining pleural fluid via chest tube?

• A. The fluid drain is typically placed at the 5th-7th intercostal space, mid-axillary line
• B. The fluid drain is placed at the anterior second intercostal space
• C. The fluid drain is placed at the 9th intercostal space, posterior
• D. The fluid drain is placed at the 2nd intercostal space, midclavicular

Answer: (A)

Draining pleural fluid with a chest tube is best done from the lower lateral chest, along the mid-axillary line, entering the pleural space just above the rib to protect the intercostal vessels. This position targets the dependent area where fluid accumulates and uses gravity to aid drainage, while staying within a safe approach that minimizes injury to underlying organs and structures. Sites higher up or in different locations are used for other purposes or are less effective for fluid drainage. For example, an anterior, upper chest placement is more associated with air evacuation (pneumothorax) and carries different risks, while a posterior entry too far down can be difficult to access and may not efficiently drain the basal fluid.

Draining pleural fluid with a chest tube is best done from the lower lateral chest, along the mid-axillary line, entering the pleural space just above the rib to protect the intercostal vessels. This position targets the dependent area where fluid accumulates and uses gravity to aid drainage, while staying within a safe approach that minimizes injury to underlying organs and structures.

Sites higher up or in different locations are used for other purposes or are less effective for fluid drainage. For example, an anterior, upper chest placement is more associated with air evacuation (pneumothorax) and carries different risks, while a posterior entry too far down can be difficult to access and may not efficiently drain the basal fluid.