Atelectasis refers to which condition?

Atelectasis is defined as the collapse of part or all of a lung, which can occur when the alveoli, the small air sacs in the lungs, become deflated or filled with fluid. This condition can arise due to various factors such as obstructed airways, lack of surfactant, or prolonged bed rest, among others.

Understanding atelectasis is critical in respiratory practice because it can significantly compromise gas exchange, leading to hypoxemia. The presence of atelectasis may require interventions such as deep breathing exercises, incentive spirometry, or chest physiotherapy to reopen the collapsed areas and improve lung function. Recognizing the signs and understanding the mechanics behind this condition can help in the effective management and treatment of patients experiencing respiratory issues.