👉 Pe fluid, also known as pleural fluid, is a clear, colorless liquid found in the cavities surrounding the lungs and the inner surface of the chest wall, specifically within the pleural space. It plays a crucial role in facilitating smooth respiratory movements by reducing friction between the lungs and the chest wall as they expand and contract during breathing. Produced by both the lung parenchyma and the pleural membranes, pe fluid maintains a delicate balance; its volume and composition are tightly regulated to ensure optimal lung function. Any imbalance, such as excessive accumulation (pleural effusion) or depletion (pleural hemorrhage), can lead to respiratory complications.
