plate atelectasis causes
There are 4 primary mechanisms that can cause atelectasis. These include: Obstruction - Blockage of an airway, either from inside (for example, by a foreign body that is aspirated, or a mucous plug), or the outside (for example, by a lung cancer pressing on the airway), can result in collapse of a portion of the lung.
An airway blockage also can cause atelectasis. A blockage may be due to a foreign object (such as an inhaled peanut), a mucus plug, lung cancer, or a poorly placed breathing tube from a ventilator. When a blockage occurs, the air that's already in the air sacs is absorbed into the bloodstream.
Atelectasis is collapse of lung tissue with loss of volume. Patients may have dyspnea or respiratory failure if atelectasis is extensive. They may also develop pneumonia. Pleuritic chest pain may be present with certain causes of atelectasis. Diagnosis is by chest x-ray.
Hypoventilation - Failure to take deep breaths can result in the collapse of part of the lungs. This is very common during surgery, especially with general anesthesia, and when breathing is shallow due to pain (such as with rib fractures). Hypoventilation is the most common cause of atelectasis.
2 doctors agreed: linear atelectasis: Lung collapse/atelectasis can occur for many reasons asthmatics get collapse because of mucus plugs in the airway.Sometimes aspiration causes atelectasis. Infection and tumor can produce atelectasis. Ateletasis can clear following disappearance of disease process.