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L9, Cryptosporidium, Isospora,cyclospora& Sarcocystis , Parasitology

 Lecture Video



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MCQ

1-Mature oocyst of cryptosporidium contain ……………sporozoites

(2-3-4)

2- Cryptosporidium lives in the brush border of ……………………….epithelium

( respiratory- urinary- rectal)

3- Infective stage of cryptosporidium is ……………….

( encysted metacercaria-sporulated oocyst-cysticercoid)

4- Mode of infection of cryptosporidium is……………………..

 ( skin contact- ingestion- inhalation)

5- Auto infection that occur in case of cryptosporidium is………………..

 ( internal- external- both)

6- Pathological lesion that caused by cryptosporidium is due to……………

a- Toxins of adult worm

b- Intestinal perforation

c- Destruction of intestinal brush border

d- All of them

7- In immunocompromised patient infected with cryptosporidium, there is chronic…………..

( Bloody diarrhea- watery diarrhea- rectal prolapse)

8- Stain that used to examine stool sample of patient infected with cryptosporidium is……………

 ( Zeil nelsin- acid fast- H&E)

9- Mature oocyst of Isospora contain ………………..sporocyst

(2-3-4)

10-Each sporocyst contain ……………….sporozoite

(2-3-4 )

11-Habitat of Isospora is epithelium of…………………

 (lung-urinary bladder-small intestine)

12-Man act as …………………….in Isospora

( D.h- I.h- R.h)

13-Infective stage of Isospora is …………………….

(mature oocyst- immature sprocyst- egg)

14-Mode of infection of Isospora is………………..

 ( ingestion- inhalation- skin)

15-Isospora under go ………………………………….multiplication

( intra cellular- extra cellular- both)

16-Immunocompromised infected by Isospora may complain of ………………

( bloody diarrhea-watery diarrhea- hemorrhage)

17-Isosporiasis should be suspected when there is diarrhea with…………………..

(basophilia- Eosinophilia- thrombocytopenia)

18-Ttt of Isospora is a combined therapy of……………..

a- Pyrimethamine & sulfadiazine

b- Praziquantal & mebendazole

c- Pyrimethamine & tetracycline

19-Oocyst of Sarcocystis is ………………..

(oval-round-pear shaped)

20-Sporocyst of Sarcocystis is..................

(oval-rounded-pear shaped)

21-Sarcocyst of Sarcocystis contain…………………

 ( oocyst- sporocyst-bradyzoite)

22-Habitat of Sarcocystis is the mucosa of………………….

 ( lung- small intestine- colon)

23-Man and meet- eater animals act as ………………….for Sarcocystis

(D.h- I.h- R.h)

24-I.h of sarcocystis bovihomonis is………………….

 ( pigs- cattle- dogs)

25-I.h of sarcocystis suihominis is………………….

 ( pigs- cattle- dogs)

26-Infective stage of sarcocystis is……………….

 (oocyst- sporocyst-Sarcocyst)

27-Finding oocyst or sporocyst of sarcocystis in stool being after days after ingestion………….

( 3-5 / 5-12 / 7-21) 

28-Sprocyst of cyclospora contain ……………..sporozoites

(2-3-4)

29-Infective stage of cyclospora is………………

( immature oocyst- sporulated oocyst- immature egg)

30-Cyclospora may lead to villous………………..

( atrophy- hypertrophy-ulcers)

31-In immunocompromised patient infected with cyclospora there is……………………….. involvement

(Urinary- biliary- cutaneous) 

32-Which of the following not a diagnostic technique for cyclospora………………..

( serology- pcr- duodenal aspiration- stool examination)

33-Drug of choice in ttt of cyclospora is………

a- Praziquantal + mebendazole

b- Trimethobrim+ sulfadiazine

c- Trimethobrim+ miconazide

MCQ answers

1- 4

2- Respiratory

3- Sporulated oocyst

4- Ingestion

5- Internal

6- C ( destruction of brush border)

7- Watery diarrhea

8- Acid fast

9- 2

10-4

11-Small intestine

12-R.h

13-Mature oocyst

14-Ingestion

15-Intracellular

16-Watery diarrhea

17-Esinophilia

18-A

19-Round

20-Oval

21-Bradyzoite

22-Small intestine

23-D.h

24-Cattle

25- Pigs

26-Sarcocyst

27-5-12

28-2

29-Sporulated oocyst

30-Villous atrophy

31-Biliary

32-Duodenal aspiration

33-B



true or fulse

34-Auto infection occur with cryptosporidium (        )

35-Bloody diarrhea occur with cryptosporidium (       )

36-Immature Isospora oocyst contain 2 sporozoites (       )

37-Human is rarely act as I h of sarcocystis , with no intestinal infection (       )


true or false answers


34-T

35-F

36-F

37-T


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