Tpes of diarrhoea, Biology

Tpes of Diarrhoea:

Diarrhoea can be acute, chroniclpersistent diarrhoea and dysentery. 

If an episode of diarrhoea lasts less than 14 days, it is acute diarrhoea. Acute watery diarrhoea causes dehydration and contributes  to malnutrition. The death of a child with acute diarrhoea is usually due to  dehydration. If the diarrhoea lasts 14 days or more, it is persistent diarrhoea. Up to 20 per cent of episodes of diarrhoea become persistent. Persistent diarrhoea ofter,  causes nutritional problems  that contribute  to  deaths in children who have diarrhoea Diarrhoea with blood in the stool, with or without mucus, is called dysentry.  

The most common cause of dysentery is Shigella bacteria. Amoebic dysentery is not common in young children. A child may have both watery diarrhoea and dysentery. 

Etiology 

The causes of diarrhoea can be classified as follows: 

i)  Infectious causes Viral  : Rota virus, Norwalk and allied viruses, Enterovirus, Influenza virus, measles virus. Bacterial  : E.coli, Shigella, Salmonella, Staphylococcus, Campylobacter Jeguni, Yersinia  enterocolitice, Clostridium dificile, Aeromoneus hydrophilia, Vibrio parahemolyticus,  klebsella. Parasities  : Giardia Larnbila, Entarnoeba  histolytica, Canadida albicans, 8  Trichuris, Trichuria, Strongyliods stercoralis. Fungi  : Canadida albicans, Histoplasma capsulatum 

ii)  Drugs  : Antibiotics 

iii)  Diet  : Food poisoning, Food allergy, Overeating, Starvation 

iv)  Necrotising enterocolitis 

v)  Other causes  : Intussusception, Uremic syndrome, Congenital aganglionic .  mgacolon, Neonatal drug withdrawal syndrome.  

 

Posted Date: 10/26/2012 7:25:07 AM | Location : United States







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