Where is needle decompression performed for a tension pneumothorax?

Where is needle decompression performed for a tension pneumothorax?

• A. Second intercostal space at the anterior axillary line
• B. Fourth intercostal space at the midclavicular line
• C. Second intercostal space at the midclavicular line
• D. Third intercostal space at the midclavicular line

Answer: (C)

In a tension pneumothorax you need rapid relief of the trapped air by venting the pleural space. The quickest, most reliable entry point is the second intercostal space at the midclavicular line on the affected side. This spot gives direct access to the apical pleural space, which is where air accumulates in a tension pneumothorax, and it’s easy to find in an emergent, often supine patient. When performing the entry, insert the needle just above the upper border of the rib in that intercostal space to avoid the intercostal vessels that run along the inferior edge of each rib. This location is preferred over lower or more lateral sites because they’re less predictable for rapid decompression and carry higher risk of injuring organs or failing to reach the pleural space. After decompression, chest tube placement should follow as definitive management.

In a tension pneumothorax you need rapid relief of the trapped air by venting the pleural space. The quickest, most reliable entry point is the second intercostal space at the midclavicular line on the affected side. This spot gives direct access to the apical pleural space, which is where air accumulates in a tension pneumothorax, and it’s easy to find in an emergent, often supine patient.

When performing the entry, insert the needle just above the upper border of the rib in that intercostal space to avoid the intercostal vessels that run along the inferior edge of each rib. This location is preferred over lower or more lateral sites because they’re less predictable for rapid decompression and carry higher risk of injuring organs or failing to reach the pleural space. After decompression, chest tube placement should follow as definitive management.