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
Blood in the Water match and spat at the Russians. To avoid a riot, police entered the arena and shepherded the crowd away. Pictures of Zádor's injuries were published around the world, leading to the "Blood in the Water" moniker. Reports that the water in the pool turned red were, however, an exaggeration. Zádor said his only thought was whether he would be able to play the next match. The referees stopped the match; Hungary was declared the winner since they had been leading. Hungary then beat Yugoslavia 2–1 in the final to win their fourth Olympic gold medal. Zádor's injury would force him to