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oral rehydration solution

A drink with a set mix of water, salts and sugar, used to replace fluid lost through diarrhea or vomiting.

OR-ul ree-hy-DRAY-shun suh-LOO-shun noun

What it means

A balanced fluid that the gut absorbs well, because the sugar helps the intestine take up sodium and water with it. It is the first treatment for mild to moderate dehydrationdee-hy-DRAY-shunA state in which the body has lost more water than it has taken in.de- remove, lack ofhydr/o water-ation processFull entry , especially in children. Products include Pedialyte and the World Health Organization's packets. Sports drinks, juice and soda are not the same: they have too much sugar and too little salt.

For the nurse

Give small amounts often (for example 5 mL every few minutes by spoon or syringe for a vomiting child) and increase as tolerated. Record intake and output and wet diapers.

At a glance

Also writtenoral rehydration solutions, oral rehydration salts, ORS, oral rehydration therapy

Related terms

dehydration

A state in which the body has lost more water than it has taken in.

diarrhea

Loose or watery stools, usually three or more times a day or more often than normal for the person.

electrolyte

A mineral that carries an electric charge when dissolved in body fluids, such as sodium, potassium, calcium and chloride.

viral gastroenteritis

An infection of the stomach and intestines caused by a virus, such as norovirus or rotavirus.

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