infective diarrhoea

Question 1

pathology of cholera

Answer 1

chloride ions flood into lumen and water follows

up to 20L/day of diarrhoea

Question 2

treatment of cholera

Answer 2

doxycycline

fluids

Question 3

which age group does Shiga like toxin usually affect?

Answer 3

children

Question 4

patients with immunosuppression are likely to get infective diarrhoea from which organisms?

Answer 4

cryptosporidium 
mycobacteria
microsporidia
CMV
HSV

Question 5

if there is bloody diarrhoea, which organisms should you worry about?

Answer 5

campylobacter
shigella
salmonella
E.coli

Question 6

pathology of secretory diarrhoea

Answer 6

deranged membrane transport results in decreased electrolyte absorption and thus decreased water absorption

Question 7

what does it mean if a patient has watery diarrhoea?

Answer 7

non-inflammatory

proximal small bowel is affected

Question 8

what does it mean if the patient has bloody or mucoid diarrhoea?

Answer 8

inflammatory

the colon is affected

Question 9

what happens when a patient is infected with Shiga like toxin?

Answer 9

haemolytic uraemic syndrome
bloody diarrhoea
patient gets better for a while then gets ill again - v. tired and RBCs breaking down –> renal failure

Question 10

complications of diarrhoea

Answer 10

dehydration