What is the primary purpose of thoracentesis?

The primary purpose of thoracentesis is to withdraw fluid from the pleural space, which is the area between the lungs and the chest wall. This procedure is typically performed to diagnose or treat conditions such as pleural effusion, where excess fluid accumulates. By removing the fluid, healthcare providers can analyze it for signs of infection, cancer, or other diseases, and relieve symptoms like difficulty breathing or chest pain that result from the fluid buildup.

While assessing lung function, administering medication, and providing oxygen therapy are important aspects of respiratory care, they do not accurately define the function of thoracentesis. The procedure specifically targets fluid removal to address pleural space issues, making it a crucial intervention in various pulmonary conditions.