During needle decompression, where should the needle be inserted relative to the rib?

During needle decompression, where should the needle be inserted relative to the rib?

• A. Under the rib
• B. Along the inferior border
• C. Over the top of the rib
• D. At the costochondral junction

Answer: (C)

The essential idea is to protect the intercostal neurovascular bundle by entering the pleural space just above the rib. The nerves and vessels run along the inferior border of each rib, so guiding the needle over the top edge of the lower rib (i.e., just above it) avoids these structures while allowing access to the pleural space. Inserting under the rib or along the inferior border increases the risk of injuring the intercostal vessels and nerves, and targeting the costochondral junction isn’t reliable for reaching the pleural space. So, placing the needle over the top of the rib is the safest way to perform decompression.

The essential idea is to protect the intercostal neurovascular bundle by entering the pleural space just above the rib. The nerves and vessels run along the inferior border of each rib, so guiding the needle over the top edge of the lower rib (i.e., just above it) avoids these structures while allowing access to the pleural space. Inserting under the rib or along the inferior border increases the risk of injuring the intercostal vessels and nerves, and targeting the costochondral junction isn’t reliable for reaching the pleural space. So, placing the needle over the top of the rib is the safest way to perform decompression.