Questão 1
Questão
Each of the following statements concerning malaria is correct EXCEPT:
Responda
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Release of merozoites from red blood cells causes periodic fever and chills.
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The principal site of gametocyte formation is the human gastrointestinal tract.
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Early in infection, sporozoites enter hepatocytes.
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The female Anopheles mosquito is the vector.
Questão 2
Questão
Which of the following agent is used to prevent Malaria
Responda
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Mebendazole
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Chloroquine
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Zinc tablet
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Inactivated vaccine
Questão 3
Questão
Laboratory diagnosis of a patient with a suspected liver abscess due to Entamoeba histolytica should include:
Responda
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Stool examination and indirect hemagglutination test
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Stool examination and blood smear
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Xenodiagnosis and string test
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Indirect hemagglutination test and skin test
Questão 4
Questão
Infective stage of Entamoeba histolytica is:
Responda
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filariform larvae
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trophozoite
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quadrinucleate cyst
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sporozoite
Questão 5
Questão
A 30-year-old woman presents to her gynecologist with complaints of vaginal itching and a frothy, yellow discharge. She also complains of painful urination. She admits to being sexually active with several men in the past two weeks. Cultures are negative for bacterial growth, but organisms are visible via a wet preparation on low power. The most likely causal agent is
Responda
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Chlamydia trachomatis
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Giardia lamblia
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Candida albicans
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Trichomonas vaginalis
Questão 6
Questão
Each of the following parasites has an intermediate host as part of its life cycle EXCEPT:
Responda
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Taenia solium
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Trichomonas vaginalis
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Echinococcus granulosus
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Toxoplasma gondii
Questão 7
Questão
In malaria, the form of plasmodia that is transmitted from mosquito to human is the:
Responda
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Merozoite
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Hypnozoite
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Sporozoite
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Gametocyte
Questão 8
Questão
Trophozoites, Schizonts and gametocytes of all the malarial parasites are seen in the peripheral blood smear except;
Responda
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P. ovale
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P. falciparum
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P. vivax
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P. malariae
Questão 9
Questão
A 35-year-old man comes to the emergency department complaining of high fever, chills, severe headache, and confusion. He has recently returned from Africa. A peripheral blood smear reveals multiple ring structures and crescent-shaped gametes. Which of the following organisms is the most likely cause?
Responda
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Plasmodium falciparum
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Plasmodium malariae
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Plasmodium vivax
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Leishmania species
Questão 10
Questão
Each of the following statements concerning sleeping sickness is correct EXCEPT:
Questão 11
Questão
Each of the following statements concerning kala-azar is correct except:
Responda
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Kala-azar is caused by Leishmania donovani
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kala-azar is transmitted by the bite of sandflies
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Kala-azar occurs primarily in rural latin America
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Kala-azar can be diagnosed by finding amastigotes in bone marrow
Questão 12
Questão
The pathogenic protozoon with extra-intestinal spread through blood is:
Responda
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Giardia Lamblia
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Entamoeba coli
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Isasporabelli
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Entamoeba histolytica
Questão 13
Questão
Naegleria fowleri infection is diagnosed by:
Responda
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Blood film
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Serological examination
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Lumber puncture
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None of the above
Questão 14
Questão
Naegleria fowleri is
Questão 15
Questão
Acanthamoeba species cause:
Questão 16
Questão
regarding toxoplasmosis in humans:
Responda
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becomes active in immuno-compromised patients
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acute infection could be transmitted from mother to fetus
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associated with cats
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is mainly diagnosed by serological tests
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all of the above
Questão 17
Questão
oocyst of Toxoplasma is found in:
Questão 18
Questão
cryptosporidium multiplies in:
Responda
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the lumen of small intestine
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the brush border of epithelial lining of small intestine
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the lumen of large intestine
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non of the above
Questão 19
Questão
in visceral Leishmaniasis culture of the biopsy material on NNN medium results in :
Questão 20
Questão
Each of the following statements concerning Trypanosoma cruzi is correct EXCEPT:
Responda
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T. cruzi typically affects heart muscle, leading to cardiac failure.
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T. cruzi occurs primarily in tropical Africa.
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T. cruzi is transmitted by the reduviid bug.
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T. cruzi can be diagnosed by seeing amastigotes in a bone marrow aspirate.