Para Lec - T. trichiura Flashcards
common name of trichuris trichiura
whipworm
final host of trichuris trichiura
man
habitat of trichuris trichiura
Large intestine
trichuris trichiura is attached to __
cecum
type of attachment of trichuris trichiura
pin fashion attachment
diagnostic stage of trichuris trichiura
ova
infective stage of trichuris trichiura
embryonated ova
sources of infection of trichuris trichiura
STH
MoT trichuris trichiura
Ingestion
portal of entry of trichuris trichiura
mouth
unholy trinity
trichuris trichiura
Ascaris lumbricoides
Hookworms
does trichuris trichiura have an extra-intestinal phase
no
lifespan of trichuris trichiura
1-3 years
how manypercent of trichuris trichiura infections are asymptomatic
90%
why are trichuris trichiura infections asymptomatic
trichuris trichiura is small
intensity of infections peaks by age __
10
color of adult worm
flesh or pinkish
what part of trichuris trichiura is attenuated
anterior 2/3
what part of trichuris trichiura is robust and fleshy
posterior 1/3
describe the anterior 2/3 of trichuris trichiura
attenuated and thin
describe the posterior 1/3 of trichuris trichiura
fleshy and robust
ova morphology trichuris trichiura
mucoid, bipolar plug
function of mucoid bipolar plug
way of exit of larva
shape of ova
football/lemon/barrel shaped
prepatency trichuris trichiura
2 months
appearance of embryonated egg
segmented egg
this occurs during heavy infections
rectal prolapse
number of eggs released per day
3 000 - 20 000 eggs
drug of choice for trichuris trichiura
albendazole, mebendazole x 3 days
because it is harder to expel since it is attached pin fashion
what type of eggs are passed with the stool
unembryonated eggs
where do eggs of trichuris trichiura mature and establish themselves as adults
colon
caution in diagnosing infection
stool negative for egg but with manifestation, reason?
parasite is still migrating
caution in diagnosing infection
negative for egg (2 reasons)
all male parasites
female worms still not capable of laying eggs
asymptomatic, type of infection
light
symptoms of t. trichiura
iron deficiency anemia physical weakness stunted growth cognitive deficit trichuris dysentery syndrome trichuris colitis rectal prolapse
inflammation of colon
colitis
cause of colitis
attachment of worms
parasites which undergo heart and lung migration
Ascaris lumbricoides
Hookworms
Strongyloides stercoralis
