Rehydration is the replenishment of water, or water and electrolytes, lost through dehydration.

In humans, methods of rehydration include oral rehydration therapy or intravenous therapy. As oral rehydration is less painful, less invasive, less expensive, and easier to provide, it is the treatment of choice for mild dehydration. Because severe dehydration can rapidly cause permanent injury or even death, intravenous rehydration is the initial treatment of choice for that condition.Fact|date=January 2008 Solutions used for intravenous rehydration must be isotonic or hypotonic. Pure water injected into the veins will cause lysis of erythrocytes.

Subcutaneous rehydration is also used, especially in veterinary medicine. This is a slower method, so not normally used for emergencies.

If someone exhibits signs of moderate to severe dehydration, medical attention should be sought.

External links

* [ Rehydration Project]

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Look at other dictionaries:

  • rehydration — The return of water to a system after its loss. * * * re·hy·dra·tion (re″hi draґshən) the restoration of water or of fluid content to a patient or to a substance that has become dehydrated; see also oral rehydration therapy, under… …   Medical dictionary

  • rehydration — rehydrate ► VERB ▪ absorb or cause to absorb moisture after dehydration. DERIVATIVES rehydration noun …   English terms dictionary

  • rehydration — noun see rehydrate …   New Collegiate Dictionary

  • rehydration — See rehydrate. * * * …   Universalium

  • rehydration — noun The replenishment of water and electrolytes lost through dehydration …   Wiktionary

  • rehydration — re·hydration …   English syllables

  • rehydration — |rē+ noun Etymology: re + hydration : the action or process of rehydrating …   Useful english dictionary

  • Oral rehydration therapy — Nurses encouraging a patient to drink an oral rehydration solution to combat dehydration caused by cholera. Oral rehydration therapy (ORT) is a simple treatment for dehydration associated with diarrhoea, particularly gastroenteritis or… …   Wikipedia

  • Oral rehydration therapy — The administration of special fluids by mouth. ORT is used to treat dehydration. See also oral rehydration solution. * * * (ORT) oral administration of a solution of electrolytes and carbohydrates in the treatment of dehydration …   Medical dictionary

  • oral rehydration salts — (ORS) [USP] a dry mixture of 1. sodium chloride, potassium chloride, dextrose, and either sodium citrate or sodium bicarbonate; dissolved in water for use in oral rehydration therapy (q.v.) …   Medical dictionary

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