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Medical Term:

alveolocapillary block


Definition: the presence of material that impairs the diffusion of gases between the air in the alveolar spaces and the blood in alveolar capillaries; block can be caused by edema, cellular infiltration, fibrosis, or tumor, and results in undersaturation of peripheral arterial blood with oxygen.

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.