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
Survivor: Blood vs. Water Survivor: Blood vs. Water Survivor: Blood vs. Water is the 27th season of the American CBS competitive reality television series "Survivor". The season filmed in May–June 2013 and premiered on Wednesday, September 18, 2013, featuring returning castaways and their loved ones competing against each other. It was the third consecutive season, and the ninth season overall, to feature returning contestants. As with the previous two seasons, the season was filmed in the Philippines, but this time at Palaui Island, Cagayan. The tribe names were Galang and Tadhana, which means "respect" and "destiny", respectively, in Tagalog. Tyson Apostol was named the