The thirteenth-century accomplishments of Chinggis Khan in conquering a swath of the world from modern-day Korea to southern Russia and in invading deep into Europe, and the cultural achievements of his grandson, Khubilai Khan, in China are well-known in world history.
Extra fluid can be removed by kidneys to form urine.When kidneys shut down, the fluids will build up in body, thus leading to swelling. It often cause retention of fluids in legs and feet. In serious case, the lung may be flooded with water. Swelling is one of common symptoms of kidney shutdown.
The body shuts down as the end gets closer. The heart doesn't pump normally which leads to lower blood pressure and less blood going to the arms and legs and other organs like the kidneys. With less blood going to the kidneys, the kidneys stop working which leads to smaller amounts of urine output. The urine may also become darker in color.