Giardiasis Flashcards
What pathogen is giardiasis caused by?
Giardia lamblia
how is giardia lamblia spread?
faecal-oral route
access to contaminated water, uncooked fruit or veg or lack of hand hygiene are key
think india for questions
Clinical features?
incubation period is one to 3 weeks
patients often have explosive, non-bloody diarrhoea
Bloating, flatulence, nausea, weight loss, anorexia
Diagnosis of giardiasis?
Stool microscopy, repeated 3 times on separate days to avoid false negative results
Other tests include stool antigen tests and stool PCR
Management of giardiasis?
Without treatment, infection can persist for many months
treatment is with antibiotics, such as metronidazole
new-onset lactose intolerance is not uncommon in these patients