Gastroenteritis Flashcards
What is gastrotenteritis?
- Inflammation of GI tract
- Considered infective in origin usually (but can be non-infective)
- Usually transient and associated with diarrhoea, vomitting and abdominal pain
Most common cause of gastroenteritis
Viral
Length of time between ingestion of food and development of symptoms - organism cause?
- Hours = bacterial toxins
- Days = viruses
- Weeks = bacteria
- Months = parasites
Define diarrhoea
3 or more loose stools or stools with increased liquid per day
Acute vs chronic diarrhoea
Chronic lasts more than 14 days
What is dysentery?
- Gastroenteritis characterised by loose stools with blood and mucus
What is travellers diarrhoea?
- More than 3 loose stools commencing within 24hrs of foreign travel
- With or without cramps, nausea, fever or vomiting
RF for gastroenteritis
- Poor food preparation - esp in handling and cooking
- Immmunocompromised
- Poor personal hygiene
Symptoms of gastroenteritis
- Cramp like abdominal pain
- Diarrhoea +/- mucus or blood
- Vomitting
- Night sweats
- Weight loss
Examination of patient with gastroenteritis
Dehydrated and pyrexial
Features from history to ask about re infective gastroenteritis
- Bowel movements - blood? watery?
- Affected family or friends?
- Recent travel abroad
- Recent use of abx within last 4 weeks - c.diff?
Complications that can present from gastroenteritis
- Guillain Barre syndrome
- Reactive arthiritis
- Haemolytic ureamic syndrome
Investigations for gastroenteritis presentation
- None usually needed as self limiting
- Stool culture if blood/mucus, immunocompromised or if severe/persistent
Management - general gastroenteritis
- Rehydrate - encourage oral fluid intake, if severe and cannot tolerate oral fluids - admit for IV maybe
- Education to prevent further episodes
- Exclusion from work - 48hrs from last episode of vomitting or diarrhoea
Notifiable disease - when?
- Food poisoning
- Infectious bloody diarrhoea
Diagnosing doctor has DUTY to inform
- Campylobacter and Salmonella also are but the lab inform public health about this