The transudate

The transudate is the liquid accumulated in the serous cavities of the body due to impaired blood and lymph circulation (with increasing permeability of the blood vessels). For example, when venous stagnation, caused by heart failure, transudate appears in the cavities of the pleura, pericardium, abdominal cavity; violations circulation in the system of portal vein (liver cirrhosis) accompanied by the appearance of ascites (see). The transudate transparent, usually colorless (if there is no mixture of blood or bile pigments), contains up to 2-3% protein, salt, in centrifugate almost no cellular elements.
Unlike the exudate (see), transudate not accompanied by inflammation of the serous membranes, pain, temperature reaction, but it can become infected and then complicated by the development of pleurisy, peritonitis.