Where is the needle placed for therapeutic pleural tapping?

Where is the needle placed for therapeutic pleural tapping?

• A. Superior to the 12th rib posteriorly
• B. Inferior to the 12th rib posteriorly
• C. At the midaxillary line around the 9th intercostal space
• D. Above the 6th rib anteriorly

Answer: (A)

When performing pleural tapping, the goal is to reach the pleural space while protecting underlying structures. The needle is placed just above the inferior border of a rib to avoid the intercostal neurovascular bundle that runs along that border. In the posterior approach, the pleural space lies close to the 12th rib, and the kidney sits beneath this region. Therefore inserting the needle superior to the 12th rib in the posterior chest provides access to the pleural cavity while minimizing the risk of injuring the kidney. Going below the 12th rib posteriorly could strike the kidney, and anterior or higher-lateral sites carry other organ injury risks or are not as safe in this posterior approach.

When performing pleural tapping, the goal is to reach the pleural space while protecting underlying structures. The needle is placed just above the inferior border of a rib to avoid the intercostal neurovascular bundle that runs along that border. In the posterior approach, the pleural space lies close to the 12th rib, and the kidney sits beneath this region. Therefore inserting the needle superior to the 12th rib in the posterior chest provides access to the pleural cavity while minimizing the risk of injuring the kidney. Going below the 12th rib posteriorly could strike the kidney, and anterior or higher-lateral sites carry other organ injury risks or are not as safe in this posterior approach.