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Pulmonary edema (British English: oedema), also known as pulmonary congestion, is excessive fluid accumulation in the tissue or air spaces (usually alveoli) of the lungs. [1] This leads to impaired gas exchange , most often leading to shortness of breath ( dyspnea ) which can progress to hypoxemia and respiratory failure .
A pleural effusion is accumulation of excessive fluid in the pleural space, the potential space that surrounds each lung.Under normal conditions, pleural fluid is secreted by the parietal pleural capillaries at a rate of 0.6 millilitre per kilogram weight per hour, and is cleared by lymphatic absorption leaving behind only 5–15 millilitres of fluid, which helps to maintain a functional ...
Immersion causes increased external hydrostatic pressure, leading to redistribution of blood from the periphery to the chest, which increases cardiac filling pressures and stroke volume, and also reduces total lung capacity. There is a movement of fluid from the alveolar capillaries into the alveoli and extravascular lung tissues, which ...
The Lake Louise Consensus Definition for high-altitude pulmonary edema has set widely used criteria for defining HAPE symptoms. [7] In the presence of a recent gain in altitude, the presence of the following: Symptoms: at least two of: Shortness of breath at rest; Cough; Weakness or decreased exercise performance; Chest tightness or congestion
A pulmonary shunt often occurs when the alveoli fill with fluid, causing parts of the lung to be unventilated although they are still perfused. [2] Intrapulmonary shunting is the main cause of hypoxemia (inadequate blood oxygen) in pulmonary edema and conditions such as pneumonia in which the lungs become consolidated. [2]
Hydrothorax is the synonym of pleural effusion in which fluid accumulates in the pleural cavity.This condition is most likely to develop secondary to congestive heart failure, following an increase in hydrostatic pressure within the lungs.
Studies show that keeping your head at the appropriate height—about 2 inches (or 5 centimeters) off the bed—helps air flow into the lungs and stabilizes your respiratory function. However ...
A pulmonary consolidation is a region of normally compressible lung tissue that has filled with liquid instead of air. [1] The condition is marked by induration [2] (swelling or hardening of normally soft tissue) of a normally aerated lung. It is considered a radiologic sign.