Question 1

The structure that is always visible in stained preparations of Balantidium coli trophozoites and cysts is:

Accepted Answer

A)   Cilia
B)   Ingested bacteria
C)   Macronucleus
D)   MicronucleusE) A) and B)
F) A) and D)

Question 2

A forty-year-old immigrant from Bangladesh presented with splenomegaly and hepatomegaly. When questioned, the patient stated that he had diarrhea, dysentery, and weight loss a year or so ago, before coming to the United States. Since that time, he had become easily fatigued and felt weak. These symptoms suggest prior infection with which of the following parasites?

Accepted Answer

A)   Trypanosoma brucei gambience
B)   Trypanosoma cruzi
C)   Leishmania braziliensis
D)   Leishmania donovaniE) None of the above
F) A) and B)

Question 3

Which of the following parasites was formerly thought to have no known cyst phase in its life cycle?

Accepted Answer

A)   Chilomastix mesnili
B)   Dientamoeba fragilis
C)   Enteromonas spp.
D)   Giardia lambliaE) B) and C)
F) None of the above

Question 4

Visceral leishmaniasis is caused by:

Accepted Answer

A)   Trypanosoma brucei gambience
B)   Trypanosoma cruzi
C)   Leishmania braziliensis
D)   Leishmania donovaniE) B) and D)
F) C) and D)

Question 5

Name the parasite shown in the following image:

Accepted Answer

A)   Chilomastix mesnili
B)   Enteromonas hominis
C)   Giardia lamblia
D)   Trichomonas vaginalisE) All of the above
F) B) and C)

Question 6

Name the parasite shown in the following image:

Accepted Answer

A)   Plasmodium falciparum
B)   Trypanosoma brucei rhodiense
C)   Trypanosoma brucei gambiense
D)   Trypanosoma cruziE) B) and D)
F) B) and C) D

Question 7

Name the parasite shown in the following image:

Accepted Answer

A)   Chilomastix mesnili
B)   Enteromonas hominis
C)   Giardia lamblia
D)   Trichomonas vaginalisE) B) and D)
F) C) and D) C

Question 8

The most appropriate sample type and collection schedule for diagnosing Giardia lamblia is:

Accepted Answer

A)   One stool specimen
B)   Two stool specimens
C)   Three or more specimens collected on separate days
D)   Only one diarrheic stool specimen is needed.E) B) and C)
F) None of the above

Question 9

A traveler returning from a trip to the Andes Mountains in Central America noticed the formation of a boil on his lower leg. His physician opened the lesion and sent the purulent material to the lab for analysis. A stained preparation of the submitted material is shown here. Name the parasitic form seen in this view:

Accepted Answer

A)   Amastigote form
B)   Leptomastigote form
C)   Promastigote form
D)   Trypomastigote formE) A) and B)
F) A) and C) A

Question 10

Giardia intestinalis infection is acquired by:

Accepted Answer

A)   Ingesting contaminated food or water
B)   Swimming in fecally contaminated water
C)   . Walking barefoot in contaminated soil
D)   Either a or bE) All of the above
F) None of the above

Exam 5: Protozoa: The Hemoflagellates Trypanosoma SPP , Leishmania SPP, Flagellates and Ciliates

The structure that is always visible in stained preparations of Balantidium coli trophozoites and cysts is:

Correct Answer
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Correct Answer
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Which of the following parasites was formerly thought to have no known cyst phase in its life cycle?

Correct Answer
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Visceral leishmaniasis is caused by:

Correct Answer
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Name the parasite shown in the following image:

Correct Answer
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Name the parasite shown in the following image:

Correct Answer
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D

Name the parasite shown in the following image:

Correct Answer
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C

The most appropriate sample type and collection schedule for diagnosing Giardia lamblia is:

Correct Answer
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Correct Answer
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A

Giardia intestinalis infection is acquired by:

Correct Answer
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Exam 5: Protozoa: The Hemoflagellates Trypanosoma SPP , Leishmania SPP, Flagellates and Ciliates

The structure that is always visible in stained preparations of Balantidium coli trophozoites and cysts is:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following parasites was formerly thought to have no known cyst phase in its life cycle?

Correct AnswerverifiedShow Answer

Visceral leishmaniasis is caused by:

Correct AnswerverifiedShow Answer

Name the parasite shown in the following image:

Correct AnswerverifiedShow Answer

Name the parasite shown in the following image:

Correct AnswerverifiedD

Name the parasite shown in the following image:

Correct AnswerverifiedC

The most appropriate sample type and collection schedule for diagnosing Giardia lamblia is:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA

Giardia intestinalis infection is acquired by:

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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D

Correct Answer
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C

Correct Answer
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A

Correct Answer
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