Diuresis used to increase urine output and decrease extracellular fluid volume. Substances in the circulation can also increase the amount of circulating fluid by increasing the osmolarity of the blood. This has the effect of pulling water from the interstitial space, making more water available in the blood and causing the kidney to compensate by removing it as urine. In hypotension, often colloids are used intravenously to increase circulating volume in themselves, but as they exert a certain amount of osmotic pressure, water is therefore also moved, further increasing circulating volume. As blood pressure increases, the kidney removes the excess fluid
The Foolish Old Man Removes the Mountains The Foolish Old Man Removes the Mountains The Foolish Old Man Removes the Mountains () is a well-known fable from Chinese mythology about the virtues of perseverance and willpower. The tale first appeared in Book 5 of the "Liezi", a Daoist text of the 4th century BC, and was retold in the "Garden of Stories" by the Confucian scholar Liu Xiang in the 1st century BC. It was also used by Mao Zedong in a famous speech in 1945. The myth concerns a Foolish Old Man of 90 years who lived near a pair of mountains (given in some tellings