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White blood cells, carried to the area by the newly returning blood, release a host of inflammatory factors such as interleukins as well as free radicals in response to tissue damage. [2] The restored blood flow reintroduces oxygen within cells that damages cellular proteins, DNA, and the plasma membrane. Damage to the cell's membrane may in ...
Pulmonary laceration is a common result of penetrating trauma but may also be caused by blunt trauma; broken ribs may perforate the lung, or the tissue may be torn due to shearing forces [5] that result from different rates of acceleration or deceleration of different tissues of the lung. [6]
Contusion involves hemorrhage in the alveoli (tiny air-filled sacs responsible for absorbing oxygen), but a hematoma is a discrete clot of blood not interspersed with lung tissue. [4] A collapsed lung can result when the pleural cavity (the space outside the lung) accumulates blood or air (pneumothorax) or both (hemopneumothorax). These ...
The respiratory center of the brain is located in the pons and medulla and is primarily driven by elevated carbon dioxide levels in the blood (hypercapnia) with decreased oxygen levels serving as a less potent stimulus. [9] Central nervous system disorders, such as stroke and tumors, may cause hypoventilation. Drugs may decrease respiratory ...
Common causes include autoimmune diseases and connective tissue diseases. [2] Diagnosis of DAH is often given following observation of a patient presenting with hemoptysis, anemia, and cough, [3] along with a chest X-ray showing alveolar infiltrates in the lungs, [4] which are areas of air space in the lungs that are opacified and of higher ...
Some types of lung fibrosis respond to corticosteroids, such as prednisone. [29] Oxygen therapy is also an option. The patient may choose how much oxygen to use. The use of oxygen doesn't repair the lung damage, but can: make breathing and exercise easier; prevent or lessen complication from low blood oxygen levels; reduce blood pressure; and
A pulmonary contusion is another cause of bleeding within the lung tissue, but these result from microhemorrhages, multiple small bleeds, and the bleeding is not a discrete mass but rather occurs within the lung tissue. An indication of more severe damage to the lung than pulmonary contusion, a hematoma also takes longer to clear. [3] Unlike ...
Conditions that limit the ability of the lung tissue to exchange oxygen and carbon dioxide between the blood and the air within the lungs. Any disease which can damage the lung tissue can fit into this category. The most common causes are (in no particular order) infections, interstitial lung disease, and pulmonary edema. Causes of respiratory ...