Old 25-Sep-2007, 11:18 PM   #1

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Parasitology MCQs ... NEW


ادعولي يا شباب و يا صبايا ... تراها تسعيييين إم سي كيو

1- The pathogenic protozoon with extra-intestinal spread through blood is:
a. Giardia Lamblia
b. Entamoeba coli
c. Isasporabelli
d. Entamoeba histolytica ƒہ

2- Entamoeba histolytica trophozoites encyst in:
a. the wall of lower part of small intestine
b. the wall of the recto-sigmoid colon
c. the lumen of the colon ƒہ
d. none of the above

3- Naegleria fowleri infection is diagnosed by:
a. Blood film
b. Serological examination
c. Lumber puncture ƒہ
d. None of the above

4- Naegleria fowleri is:
a. Permanent parasite of man
b. Free living amoeba
c. Non pathogenic
d. Found in running water stream ƒہ

5- Acanthamoeba species cause:
a. chronic primary meningoencephalitis
b. keratitis with blindness
c. granuloma of internal organs
d. all of the above ƒہ
e. none of the above

6- liver abscess is a known complication of infection with:
a. fasciola hepatica
b. giardia lamblia
c. schistosoma mansoni
d. entamoeba histolytica ƒہ

7- regarding toxoplasmosis in humans:
a. becomes active in immuno-compromised patients
b. acute infection could be transmitted from mother to fetus
c. associated with cats
d. is mainly diagnosed by serological tests
e. all of the above ƒہ

8- Toxoplasma gondii is transmitted to human by:
a. ingestion of soil contaminated by oocyst from cats
b. ingestion of cysts in undercooked meat
c. congenital transmission from mother with acute toxoplasmosis
d. organ transplant and blood transfusion (infected donor)
e. all of the above ƒہ

9- cryptosporidium multiplies in:
a. the lumen of small intestine
b. the brush border of epithelial lining of small intestine ƒہ
c. the lumen of large intestine
d. non of the above

10- oocyst of Toxoplasma is found in:
a. human tissue
b. the brain of chronic patients
c. faeces of infected cat ƒہ
d. all of the above

11- trophozoite of Toxoplasma is:
a. infective by ingestion
b. free living
c. found in chronic infection
d. obligatory intracellular parasite ƒہ

12- cyst of Toxoplasma: ( I،¦m not sure !!)
a. found in acute infection
b. found in chronic infection ƒہ
c. found in stool of cats
d. all of the above

13- Giardia lamblia affects mainly:
a. upper small intestine ƒہ
b. caecum
c. colon
d. rectum
e. stomach

14- flask shaped ulcers in the colon are caused by:
a. Giardia lamblia
b. Acanthamoeba
c. Entamoeba histolytica ƒہ
d. Naegleria fowleri
e. Toxocara canis

15- in trichomonas vaginalis infection:
a. is caused by protozoan parasite
b. the infective stage is the trophozoite
c. causes vaginal discharge in females
d. may infect males
e. all of the above ƒہ

16- contamination of contact lenses could lead to eye infection with :
a. Acanthamoeba ƒہ
b. Entamoeba coli
c. Onchocerca valvulus
d. Toxocara canis
e. Loa Loa

17- Trichomonas vaginalis :
a. pseudopodia
b. cilia
c. flagella ƒہ
d. none of the above

18- the following statements are correct regarding giardiasis :
a. transmitted by ingestion of cyst
b. affects mainly the upper small intestine
c. diagnosed by examination of stool or duodenal contents
d. most infections are asymptomatic
e. all are correct ƒہ

19- infection with giardia lamblia is through:
a. ingestion of the trophozoite stage
b. ingestion of the cyst stage ƒہ
c. ingestion of the egg

20- after ingestion of giardia lamblia, cyst hatching takes place in the :
a. stomach
b. lower part of small intestine
c. upper part of small intestine ƒہ
d. colon








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Old 25-Sep-2007, 11:21 PM   #2

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21- the parasite that results in symptoms of duodenitis is:
a. entamoeba coli
b. balantidium coli
c. entamoeba histolytica
d. giardia lamblia ƒہ

22- the protozoon causing dysenteric symptoms is :
a. balantidium coli
e. entamoeba coli
f. giardia lamblia
b. trichomonas hominis
g. entamoeba histolytica ƒہ

23- the protozoon transmitted mainly by sexual contact is:
a. trichomonas hominis
b. dientamoeba fragilis
c. trichomonas vaginalis ƒہ
d. retortamonas hominis

24- Trichomonas vaginalis may inhabit :
a. the small intestine
b. the large intestine
c. the prostate ƒہ
d. none of the above

25- Laboratory diagnosis of scabies is best done by:
a. Fecal examination
b. Serology
c. Blood examination
d. Skin scraping ƒہ
e. Rectal biopsy

26- the following diseases are transmitted by anthropode vector:
a. Malaria
b. Schistosomiasis
c. Yellow Fever
d. Hyadatid cyst
e. A and C ƒہ

27- relapse in malaria is common in:
a. Plasmodium Falciprum
b. P. vivax
c. Malignant malaria
d. P. ovale
e. B and D ƒہ

28- the following parasites cause fever except:
a. Trichenilla spiralis
b. Naegleria fowleri
c. Hymenolopis nana ƒہ
d. Plasmodium vivax

29- there،¦s lymphadenopathy in the following infections except:
a. African trypanosomiasis
b. Toxoplasmosis
c. Schistosomiasis ƒہ
d. Kala-azar

30- skin myiasis is due to invasion of skin by:
a. sarcoptes scabiei
b. trematode cercariae
c. lice
d. fly larvae ƒہ

31- dogs are sources of infection for the following parasites except:
a. ascaris lumbrocoid
b. echinococus granulosus
c. leishmania donovani
d. Toxocara canis
e. A and C ƒہ

32- the following statements are true regarding plasmodium falciparum infection:
a. it causes malignant tertian infection
b. relapses occur every 3 months
c. it،¦s characterized by severe anemia
d. characteristically paroxysms occurs every 72 hours
e. A and C ƒہ

33- splenomegaly is not caused by :
a. schistomiasis
b. malaria
c. ascariasis ƒہ
d. Kala-azar

34- regarding cutaneous Leishmaniasis :
a. it،¦s caused by leishmania major
b. transmitted by sand fly
c. Diagnosed by skin smear
d. Endemic in Saudi Arabia
e. All of the above ƒہ

35- African trypanosomiasis is caused by :
a. Trypanosoma brucei ƒہ
b. Trypanosoma cruzi
c. Trichenilla spiralis

36- Naegleria fowleri infection is diagnosed by:
a. blood film
b. serological examination
c. Lumber Puncture ƒہ
d. None of the above

37- Nephrotic syndrome in plasmodium malariae is due to :
a. deposition of immune-complexes in glomerular capillaries ƒہ
b. the sever anemia
c. hypoproteinemia
d. none of the above

38- cerebral malaria is a known complication of infection with:
a. plasmodium falciparum ƒہ
b. P. vivax
c. P. ovale
d) P. malariae

39- sporogony takes place in:
a. human blood
b. the liver cells
c. * mosquitoes ƒہ
d. other sites

40- malaria attacks (paroxysms) are caused by:
a. release of toxins from RBC ƒہ
b. invasion of RBC by Merozoites
c. severe hemolytic anemia
d. all of the above








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Much difference between being the glorious or to achieve the glory..

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Old 25-Sep-2007, 11:23 PM   #3

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41- schizonts of malaria parasite are not seen in peripheral blood in:
a. P. vivax
b. P. falciparum ƒہ
c. P. ovale
d. P. malariae

42- in Kala-azar the spleen is enlarged due to:
a. portal hypertension
b. bacterial infection
c. proliferation of reticular system ƒہ
d. none of the above

43- Stained smears from organ in Kala-azar show:
a. amastigote form ƒہ
b. leptomonas form
c. epimastigote form
d. crithidia form

44- regarding visceral Leishmaniasis:
a. it causes enlargement of liver and spleen
b. is caused y leishmania tropica
c. characterized by fever
d. transmitted by direct contact with infected person
e. A and C ƒہ

45- Nephrotic syndrome occurs more with :
a. Plasmodium vivax
b. P. Malariae ƒہ
c. P. ovale
d. P. falciparum

46- plasmodium falciparum is the most serious due to:
a. absence of true relapse
b. irregular paroxysms
c. adherence and blocking of capillaries of internal organs ƒہ
d. multiple infections inside the RBC،¦s

47- Black water fever is due to:
a. blockage of capillaries to internal organs
b. rupture of infected and non infected RBC،¦s ƒہ
c. hypoglycemia

48- plasmodium life cycle in female mosquito is named:
a. gametogony
b. schizogons
c. sporogony ƒہ

49- in cutaneous leishmania the infective stage is:
a. leishmania form
b. amastigote form
c. Leptomonas form (promastigote) ƒہ
d. None of the above

50- in visceral Leishmaniasis culture of the biopsy material on NNN medium results in :
a. amastigote form
b. Leptomonas form (promastigote) ƒہ
c. Epimastigote form
d. Leishmania form

51- in malaria the infective stage for female anopheles is the:
a. early trophozoite stage
b. late trophozoite stage
c. schizont stage
d. gametocyte stage 

52- Kala-azar is biologically transmitted by:
a. female Anopheles
b. Simulium fly
c. Female phlebotomus 
d) Female culex

53- there is unilateral edema of the face and eyelid with high fever in:
a. Kala-azar
b. Romaña’s sign 
c. African trypanosomiasis

54- the metacyclic forms of trypanosoma cruzi are found in:
a. Reticuloendothelial cells
b. Heart muscles
c. Mouth part of insect vector
d. Hind gut of infected insect 

55- in malaria man gets infected by inoculation of:
a. Oocyst
b. Merozoites
c. Sporozoites 
d. None of the above

56- in Kala-azar the liver is enlarged due to:
a. hepatic cirrhosis
b. viral hepatitis
c. invasion of REC of liver 
d) all of the above

57- in man the trypanosoma forms of trypanosoma cruzi are found in:
a. blood stream 
b. intracellular in reticuloendothelial cells
c. heart muscles
d) liver cells

58- trophozoites of Toxoplasma is :
a. infective by ingestion
b. free living
c. found in chronic infection
d. obligatory intracellular parasite 

59- there are no true malaria relapse but recrudescence in:
a. Vivax
b. Falciparum
c. Malariae
d. B and C 

60- Black water fever mostly occurs with :
a. P. Vivax
b. P. ovale
c. P. falciparum 
d. P. malariae








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Old 25-Sep-2007, 11:24 PM   #4

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61- the following statements are correct regarding visceral Leishmaniasis except:
a. caused by leishmania donovani
b. Diagnosed by bone marrow aspiration
c. characterized by fever, anemia and spleenomegaly
d. transmitted by mosquitoes 

62- the following statements are correct regarding cutaneous Leishmaniasis:
a. endemic in parts of Saudi Arabia
b. caused by larva
c. diagnosed by blood film
d. transmitted by sand flies
e. A and D 

63- Naegleria fowleri is:
a. permanent parasite of man
b. free living amoeba 
c. non-pathogenic
d. found in running water stream

64- in plasmodium life cycle:
a. man is definitive host
b. man is the intermediate host 
c. mosquito is the intermediate host
d. man carries the Sexual cycle

65- trypanosoma rhodesiense exists in:
a. far east
b. America
c. Western part of Africa
d) Eastern part of Africa 

66- in malaria the parasitized RBC’s are enlarged in :
a. P. malariae
b. P. Vivax 
c. P. falciparum
d) None of the above

67- the gametocytes in peripheral blood are NOT spherical in:
a. P. falciparum 
b. P. vivax
c. P. ovale
d. P. malariae

68- winter bottom’s sign is found in:
a. American trypanosomiasis
b. African trypanosomiasis 
c. Visceral Leishmaniasis
d. Chaga’s disease

69- trypanosoma gamblianse exists in :
a. west tropical Africa 
b. Far east
c. America
d. East Africa

70- the leischmanoid form of trypanosoma cruzi are found in:
a. blood stream
b. red blood corpuscle
c. the liver cells (REC) 
d. the body of the insect vector

71- Romaña’s sign is met with in:
a. African trypanosoma
b. Acute Chaga’s disease 
c. Chronic Chaga’s disease
d. Visceral Leishmaniasis

72- after bite of infected sand fly, the inoculated organisms are transformed to:
a. Leptomonas form
b. Promastigote form
c. Epimastigote form
d. Amastigote form 

73- in Kala-azar there’s NO :
a. anemia
b. thrombocytopenia
c. hemolysis of RBC’s 
d. Leucopoenia

74- the leptomonas form (promastigote) is found in;
a. human body
b. animal reservoir
c. blood stream
d. insect vector 

75- Geographical distribution of Kala-azar include:
a. Central America
b. North America
c. Europe
d. Mediterranean 

76- Romaña’s sign is found in:
a. visceral Leishmaniasis
b. American trypanosomiasis 
c. African trypanosomiasis
d. Kala-azar

77- primaquine is used after aminoquinolines in treatment of:
a. P. malariae
b. P. Falciparum
c. P. vivax 
d) All of the above

78- American trypanosomiasis is treated with:
a. antibiotics
b. Pentamidine
c. 8-aminoquinoline
d. benznidazol 

79- for treatment and prophylaxis of African trypanosomiasis we use:
a. vermox
b. Pentamidine 
c. praziquental
d) none of the above

80- Early infection with African trypanosoma is treated with:
a. Trypanisomide
b. Antibiotics
c. Pentamidine (suramin) 
d) All of the above








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Much difference between being the glorious or to achieve the glory..

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Old 25-Sep-2007, 11:26 PM   #5

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81- Late infection with African trypanosomas is treated with :
a. Pentamidine
b. Trypanisomide (ornithine DFMO) 
c. 8-aminiquinolines
d. sulpha drugs
e) antibiotics

82- for treatment of clinical attacks of malaria we can use:
a. pentavalant
b. chloroquine (4-aminoquin) 
c. primaquine (8-aminoquin)
d. all of the above

83- following diseases are zoonotic:
a. fasciola
b. Hyadatid cyst
c. Toxoplasma
d. African trypanosoma
e. All of the above 

84- following parasites are common in children except:
a. Hymenolopis nana
b. Trichomonas vaginalis 
c. Entropies vermicularis

85- Mauret’s dots are found in parasitized RBC’s with :
a. P. falciparum 
b. P. ovale
c. P. malariae
d. P. vivax

86- Schuffner’s dots are found in parasitized RBC’s with:
a. P. Vivax
b. P. falciparum
c. P. ovale
d. A and C 

87- Duration of erythrocytic schizogony is NOT regular in:
a. P. O
b. P. F 
c. P.M
d. P. V

88- Benign tertian malaria is caused by:
a. P. V
b. P.O
c. P. F
d. A and B 

89- Quatrain malaria is caused by:
a. P. V
b. P. F 
c. P. O
d. P. M

90- 4-aminoquineline is used for:
a. P. V
b. P. O
c. P.F
d. P. M
e. All of the above (all malaria spp.) 


Pray for me & for Mama & for Baba & for the ppl I love








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Much difference between being the glorious or to achieve the glory..

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Old 26-Sep-2007, 12:23 AM   #6

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