Infective Diarrhoea Flashcards
Persisting diarrhoea few months post travel to India (or Russia) - watery, green frothy diarrhoea + cysts (white). Affects small bowel
Giardiasis
Flask shaped ulcers, greasy consistency, affects colon, periodic acid shift positive trophocyte in ulcer slough off.
Amoebiasis
Most common traveller’s diarrhoea
ETEC
Enterotoxic travellers E.Coli
Another more severe form: EHEC, haemolytic E Coli - associated with HUS. Haemolytic uraemia syndrome -renal injury
Rose coloured spots on abdomen,
10%are asymptomatic carriers (linked to gallstones )
Fever, malaise aches, CONSTIPATION, diarrhoea.
Associated with bowel perforation
Salmonella typhi/ paratyphi/ typhoid fever
Typhoid Mary is fat female forty (leper colony :(
Spiral shapes G negative rods. With ascending paralysis (GBS). Mexico
Campylobacter jejuni
Dysentery causes/ bloody dysentery
Salmonella enteritis (chicken) EColi EHEC Campylobacter Shigella Yerssinia
Most common people returning with diarrhoea
People travelling to see family overseas
Preformed toxins, symptoms within hours. Fried rice
Bacillus cereus + staph aureus
Clostridium difficile rx and cause and risks
Post ABx - broad spectrum. Ampicillin, ceftriaxone, clindamycin.
- Metronidazole
- Oral vancomycin
- Faecal transplant
TOXIC mega colon
Clostridium botulism
- source
- complication
Canned food
Flaccid paralysis
Listeria monocytogenes
Unpasteurised milk
Groundwater diarrhoea
Giardia
Sex + HIV + bloody diarrhoea , MWHSWM
Peritonism
Can treat with Ciproflixacin
Shigella only 10 can causes
Ovum and HIV
Cryptosporidium
Right iliac fossa pain, (mesenteric adenitis) dx by exclusion, pork !
Yersinia
Rice water stool
Vibrio cholera - G -be Comma. Notifiable disease
2 enterotoxins act in channels and cause severe dehydration , loss of 1L per hour.
2-5 days
Haemolytic Uraemic syndrome and Diarrhoea
Diarrhoea and haematuria= EHEC
ABx counterproductive
Most common cause of Infective diarrhoea
Norovirus
Rotavirus (kids)
Diarrhoea, vomiting
Campylobacter
Salmonella
Associations
Chicken milk
Chicken eggs meat
Clostridium perfringens
Meat , pain and fever
Types of EColi
Toxic - travellers, watery
Pathogenic - children
Haemolytic - HUS
Invasive - sim to shigella
Diarrhoea vomiting + HYPOTENSION
Meat, preformed toxins
6 hour onset
Staph aureus
