Urgent Investigation in Acute Severe Diarrhoea
- Stool microscopy and culture
- Test for Clostridium difficile toxin in stool
- Full blood count
- C-reactive protein
- Blood glucose
- Sodium, potassium, urea and creatinine
- Liver function tests, albumin
- Blood culture if febrile
- Sigmoidoscopy if bloody diarrhoea
- Abdominal X-ray if marked distension or tenderness (toxic megacolon)
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