Editing Exudate (section)

===Exudates vs. transudates===

There is an important distinction between [[transudates]] and exudates. Transudates are caused by disturbances of [[hydrostatic pressure|hydrostatic]] or [[colloid osmotic pressure]], not by inflammation. They have a low protein content in comparison to exudates. Medical distinction between transudates and exudates is through the measurement of the [[specific gravity]] of extracted fluid. Specific gravity is used to measure the protein content of the fluid. The higher the specific gravity, the greater the likelihood of [[capillary]] [[Vascular permeability|permeability]] changes in relation to [[body cavity|body cavities]]. For example, the specific gravity of the transudate is usually less than 1.012 and a protein content of less than 2&nbsp;g/100&nbsp;mL (2&nbsp;g%). [[Rivalta test]] may be used to differentiate an exudate from a transudate.
It is not clear if there is a distinction in the difference of transudates and exudates in plants.