Diarrhoea or acute
gastroenteritis is a universal problem. The most frequent cause of acute
gastroenteritis is an infection of the intestines. Such an
infection results in an outpouring of fluid and electrolytes (sodium,
potassium, chloride and bicarbonate) from the intestinal epithelial cells
into the intestinal lumen, which is then purged out as diarrhoeal stool.
Diarrhoea has been defined as passing of three or more loose or
watery stools in a day. If there is vomiting along with loose stools; loss of
large amount of body water and salts is imminent and would lead to dehydration.
Infants and young children develop dehydration faster than adults
especially in hot climates, when diarrhoea is also associated with
fever. So the most significant harmful effect of diarrhoea is major loss
of fluid and electrolytes. However during the infective diarrhoea
the intestinal ability to absorb of glucose, salts, water and nutrients
remain well preserved. Since the absorptive ability of intestines is not
altered by diarrhoea, so the management of diarrhoea or acute
gastroenteritis is possible with oral rehydration therapy (ORT).
A packet of ORS contains 27.5 grams of essential salts to be dissolved in a litre of boiled cooled or purified drinking water. An ORS packet contains 20 grams of glucose, 3.5 grams of sodium chloride (common salt or table salt), 2.5 grams of sodium bicarbonate (backing soda) and 1.5 grams of potassium chloride. Packets of ORS are supplied free of cost at Primary Health Centers and
The solution of ORS should be kept covered and used within 20 hours. If need be, fresh ORS solution should be prepared after 20 hours. Adults and older children should drink as much as they like from a cup or tumbler of ORS. A child under two years of age should be given half to one cup of ORS solution after each stool to compensate the loss of water and salts. Older children and adults should drink at least one to two cups after each stool. Easily digestible solid food such as boiled rice, soups, porridge, banana shake, curd, eggs, fish and well cooked meat are allowed even during diarrhoea. Treatment in hospitals and health centers depends on the degree of dehydration and other complications like fever and shock.