Pulmonary congestion

Pulmonary congestion refers to blood congestion in the local blood vessels of the lung, which is usually caused by left heart failure. The pressure in the left heart cavity increases, preventing pulmonary veins from returning and causing pulmonary congestion. When the lung is congested, the volume of the lungs increases, which is dark red, and foamy red bloody fluid flows out from the section. The clinical manifestations of patients with pulmonary congestion are shortness of breath, hypoxia, and cyanosis, and a large amount of serous pink foamy sputum is coughed when coughing.

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