Flashcards in Gastroenteritis and Food Poisoning Deck (138)
What condition causes GI symptoms, diarrhoea, vomiting, abdominal pain and relates to invasion of tissue +/- toxin production?
What is the commonest cause of food poisoning?
What cause of food poisoning is rare, but can lead to morbidity and outbreaks?
E coli O157
What two organisms have a short incubation period of 1-6 hours?
Staph aureus and Bacillus cereus
What two organisms have a medium incubation period of 12-48 hours and there is invasion/toxin in gut which can often cause blood diarrhoea?
What 2 organisms have a long incubation period of 2-14 days and can cause bloody diarrhoea?
Campylobacter and E coli O157
How long does it take for labarotory confirmation of bacteria?
48 hours for culture result
What two food products can campylobacter come from?
Which organism rarely causes outbreaks, occurs in small numbers and results in pain, blood and a fever?
What is the treatment for campylobacter?
What 3 food products can salmonella enteritidis come from?
Poultry, meat, raw egg
Where is salmonella occuring?
In animal gut
What is the treatment for salmonella enteritidis, which causes diarrhoea, vomiting, blood and fever?
What are the three most common groups of salmonellae?
B, C and D
What king of diarrhoea does E coli O157 cause?
Is the infectious dose low or high for E coli O157?
What two food products can E coli O157 come from?
Beef and raw milk/water
How can E coli O157 be transmitted?
Person to person
What toxin does E coli O157 produce?
What organism can cause bloody diarrhoea nad haemorrhagic colitis?
E coli O157 VTEC
What syndrome can Haemolytic Uraemic Syndrome (HUS)?
E coli O157
`What three things does verotoxin do?
1. Binds to receptors found on renal cells, RBC and others
2. Inhibits protein synthesis
3. Causes cell death
What is this a presentation of: abdominal pain, fever, pallor, petechiae, blood diarrhoea and oliguria?
What patients are commonly infected by HUS?
Under 16 years old
In HUS what are the white cells like, platelets, Hb, LDH?
LDH > 1.5 x normal
How is HUS investigated?
Send stool culture samples for all bloody diarrhoea samples
Other than U&S, FBC, film, LFT, clotting what else would you send for?
What are three complications of HUS?
1. Acute renal failure
3. Haemolytic anaemia
What 3 drug types are NOT given in HUS?
2. Anti-motility agents