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Nightingale Pathophysiology Practice Test

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All disorders associated with ARDS cause massive pulmonary what?
Correct Answer:
Inflammation
Explanation:
The fundamental process in ARDS disorders is a massive inflammatory reaction in the lungs. When the alveolar-capillary membrane is injured, inflammatory mediators recruit neutrophils and other immune cells, amplifying damage and increasing capillary permeability. This inflammatory assault lets protein-rich fluid flood the alveolar spaces, impairing gas exchange and leading to diffuse alveolar damage. That inflammatory cascade is what underpins ARDS across different triggers, so inflammation is the best overall descriptor. Edema occurs as a consequence of the permeability changes, not the initiating feature, and fibrosis or purulent exudate are not universal across all ARDS cases.

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