MERU UNIVERSITY OF SCIENCE AND TECHNOLOGY
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University Examinations 2021/2022
FIRST YEAR, THIRD SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR
OF SCIENCE IN CLINICAL MEDICINE AND COMMUNITY HEALTH
CCM 3135: MEDICAL PARASITOLOGY
DATE: OCTOBER 2022 TIME: 3 HOURS
INSTRUCTIONS: Answer All the Questions
SECTION A: TRUE OR FALSE QUESTIONS (20 MARKS)
1. Cavitary lung lesions are seen in patients with tuberculosis and which of the following
infections?
a. strongyloidiasis
b. paragonimiasis
c. ascariasis
d. filariasis
2. Which of the following is characteristic of helminths that infect human beings?
a. They usually do not multiply in the host.
b. They rarely provoke an eosinophilia.
c. They cause severe disease after infection with only a few parasites.
d. They typically cause lifelong infections.
3. A 40-year-old patient returns from a trip to Thailand with a four-day history of fever and
a one-day history of hallucinations and bloody diarrhea. The temperature is 39°C; the rest
of the physical examination is normal. A thick blood film reveals that 6% of erythrocytes
are parasitized with Plasmodium falciparum. Appropriate initial management includes;
a. intravenous artesunate
b. oral mefloquine
c. oral chloroquine and pyrimethaminesulfadoxine
d. oral quinine and doxycycline
4. Each of the following statements concerning Ascaris lumbricoides is correct except:
a. Ascaris lumbricoides is one of the largest nematode
b. Ascaris lumbricoides can cause pneumonia
c. Both dogs and cats are intermediate hosts of Ascaris lumbricoides
d. A lumbricoides is transmitted by ingestion of eggs
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, 5. . There is no increase in the number of nuclei of
a. Balantidium coli
b. Entamoeba histolytica
c. Entamoeba coli
d. Giardia lamblia
6. which of the following is associated with uveitis or ulceration of the cornea.
a. Acanthamoeba culbertsoni
b. Entamoeba histolytica
c. Balantidium coli
d. Naegleria fowleri
7. Tissue invasion is relatively slow and tends to stimulate granuloma formation.
a. Acanthamoeba castellanii
b. Entamoeba histolytica
c. Balantidium coli
d. Naegleria fowleri
8. the following parasites produces a big lesion with a wide opening and a rounded base in
the large intestine.
a. Balantidium coli
b. Giardia lamblia
c. Entamoeba histolytica
d. A & B
9. There are indurations of the irregular margins of the spreading ulcer.
a. Amoebic granuloma
b. Amoeboma
c. Amoebiasis cutis
d. Amoebic colitis
10. Each of the following statements concerning malaria is correct
a. The female anopheles mosquito is the vector
b. Early infection, sporozoites enter hepatocytes
c. Release of merozoites from red blood cells causes fever and chills
d. The principal site of gametocyte formation is the human gastrointestinal tract.
11. The pathogenic effects of diphyllobothriasis depend on the following EXCEPT?
a. the mass of the worm
b. absorption of its byproducts by the host
c. deprivation of the host’s essential metabolic intermediates.
d. Migratory effects of the parasite
12. Cestodes living in small intestine include the following EXCEPT
a. Diphyllobothrium latum
b. Necator americanus
c. Taenia saginata
d. Echinococcus granulosus
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