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Pleural fluid analysis is a test that examines a sample of fluid that has collected in the pleural space. This is the space between the lining of the outside of the lungs (pleura) and the wall of the chest. When fluid collects in the pleural space, the condition is called pleural effusion.
A pleural effusion is the buildup of excess fluid in the pleural space (the space between the lungs and chest wall). Doctors use thoracentesis to find the cause of a pleural effusion. The procedure also might be done to remove excess fluid from the pleural space and help you breathe easier.The most common cause of a pleural effusion is heart failure. This is a condition in which the heart can't pump enough blood to the body. pleural effusion is the buildup of excess fluid in the pleural space (the space between the lungs and chest wall). Doctors use thoracentesis to find the cause of a pleural effusion. The procedure also might be done to remove excess fluid from the pleural space and help you breathe easier.