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Toxocara & trichuris trichura , Parasitology

L5, part 2 


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MCQ 


1-A previously healthy 9-year-old boy presented with left eye blurring of vision for 2 days prior to admission. His vision was progressively worsened. He also complained of eye discomfort, redness and pain 1 day after the onset of illness, on asking his mother she said that he loves to play with stray cats, what do you think is the best diagnosis for this case?
a-corneal ulcer.
b-viceral larva migrans
c-ocular larva migrans
d-glaucoma

2-Mode of infection of toxocara is ……….
(skin penetration- inhalation- ingestion)
3-Man in case of toxocara, act as ………………….host 
(definitive- reservoir- paratenic)

4-Geo.distribution of toxocara is…………….
 (cold- tropical- worldwide) 

5-Toxocara larva lead to …………………………in organs 
(abscess- granuloma- ulcers)

6-All of the following are clinical manifestations of toxocara except ………….
(Pneumonia- hepatomegaly- mastoiditis) 

7-Effect of toxocara infection on Ig is………….. 
(hypo- hyper- normal) 

8-Effect of toxocara on eye ……………
(conjunctivitis- jaundice- endophthalmitis) 

9-Eosinophilia and hyper globulinemia are found in all visceral lesion of toxocara Except………..
 (hepatic- ocular- lung) 

10-Effective ttt of toxocara is…………….
 (metronidazole- praziquantal- thiabendazole)

11-Cortisone is effective in toxocara in case of …………………….involoment 
(hepatic- lung- occular )

12-A 56-year-old man was admitted for post-polypectomy surveillance, Colonoscopy revealed no abnormalities except for a small, white, worm-like object attached to the cecum. One end was embedded In the hyperemic edematous mucosa and the other end was coiled and movable within the lumen, this worm most likely is:
a-fasciola
b-taenia saginata
c-schistosoma haematobium
d-trichuris tricura

13-Adult of trichuris has …………………….like ant end 
(pointed- rounded- whip)

14-Post end of trichuris adult is……………..
 (thin- thick- rounded) 

15-Egg of trichuris is …………………shaped
 (oval – round- pear)

16-Activation of immunity in case of trichuris is due to…………..
a-Presence of post end in intestinal lumen
b-Lodging of ant end In intestinal mucosa 
c-Larval attachment to mucosa 

17-Type of anemia that occur in trichuris is ………………………chronic 
(normo- hypo- hyper)

18-Which of the following occur with trichuris infection................
(Rectal prolapse- bleeding- tenesmus- all of them)

19-Habitat of trichuris is …………………
(small intestine- large intestine- liver) 

20-Definitive host of trichuris Is…………………
 (Man- sheep- rats) 

21-Infective stage of trichuris Is………………………
 (adult- larva- embryonated egg) 

22-Mode of infection of trichuris is………………..
 (ingestion- inhalation-skin ) 

23-All of the following occur with heavy infection of trichuris except..............
(Dysentery- appendicitis- rectal prolapse- cancer colon)

24-Specific measure for detection of rectal prolapse In case of trichuris Is.................
(Duodenal aspiration- proctoscopy- harada Mori culture) 

25-In proctoscope we can find ………………..on rectal prolapse
 (adult- egg- larva)

26-Effective ttt of trichuris is…………………….
(praziquantal- mebendazole- metronidazole) 

27-Trichuris trichura is specific with…………………..
 (anemia- dysentery- rectal prolapse) 

Answers 

1-c
2-ingestion 
3-paratenic 
4-world wide
5-granuloma
6-mastoiditis
7-hyperglobulinaemia
8-endophthalmitis
9-ocular
10-thiabendazole
11-occular
12-d
13-whip
14-thick
15-Oval
16-b
17-hypochromic
18-all
19-large intestine
20-man
21-embryonated egg
22-ingestion
23-cancer colon
24-proctoscope
25-adult
26-mebendazole
27-rectal prolapse 





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