WordNet
- of or relating to osmosis; "osmotic pressure"
- increased secretion of urine; if not due to increased liquid intake or to the action of a diuretic drug it can be a symptom of diabetes mellitus
PrepTutorEJDIC
- 浸透する;浸透性の
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/10/18 10:09:08」(JST)
[Wiki en表示]
Osmotic diuresis is increased urination caused by the presence of certain substances in the small tubes of the kidneys.[1] The excretion occurs when substances such as glucose enter the kidney tubules and cannot be reabsorbed (due to a pathological state or the normal nature of the substance). The substances cause an increase in the osmotic pressure within the tubule, causing retention of water within the lumen, and thus reduces the reabsorption of water, increasing urine output (i.e. diuresis). The same effect can be seen in therapeutics such as mannitol, which is 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 as urine.
Sodium, chloride, potassium are excreted in Osmotic diuresis, originating from Diabetes Mellitus (DM). Osmotic diuresis results in dehydration from polyuria and the classic polydipsia (excessive thirst) associated with DM.
See also[edit]
- Ketosis
- Polydipsia
- Sulfonylurea
References[edit]
- ^ Ganong, William F. (2005). Review of Medical Physiology. McGraw-Hill Professional. p. 719. ISBN 0-07-144040-2.
External links[edit]
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Related Links
- Osmotic diuresis is increased urination caused by the presence of certain substances in the small tubes of the kidneys. The excretion occurs when substances such as glucose enter the kidney tubules and cannot be reabsorbed ( due to a ...
- Osmotic diuresis is increased urination due to the presence of certain substances in the fluid filtered by the kidneys. This fluid eventually becomes urine. These substances cause additional water to come into the urine, increasing its amount.
★リンクテーブル★
[★]
- 英
- osmotic diuresis
- 関
- 利尿
- 尿細管中に非吸収性、あるいは多量の吸収性の浸透圧物質が存在することにより引き起こされる利尿
[★]
- 関
- osmolal、osmolality、osmolar、osmotic pressure、osmotical、osmotically
[★]
- 関
- diuretic、polyuria