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Mls 2303: Clinical Helmothology Question Paper
Mls 2303: Clinical Helmothology
Course:Bachelor Of Science In Medical Laboratory Sciences
Institution: Jomo Kenyatta University Of Agriculture And Technology question papers
Exam Year:2012
JOMO KENYATTA UNIVERSITY
OF
AGRICULTURE AND TECHNOLOGY
University Examinations 2012/2013
FOURTH YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN MEDICAL LABORATORY SCIENCES
MLS 2303: CLINICAL HELMOTHOLOGY
DATE: AUGUST, 2012 TIME: 2 HOURS
INSTRUCTIONS:
SECTION A - ANSWER ALL QUESTIONS
1. The most environmentally resistant form of many parasites is a stage of development called the:
a) Vegetarian
b) Spore
c) Cyst
d) Trophozote
2. The following are types of larva migras except:
a) Visceral larva migrais
b) Cutenlong larva migras
c) Intestinal larva migras
d) Duodenal larva migras
3. Hookworm:
a) Is usually spread by feacal-oral route
b) May cause pancreatitis
c) Commonly causes diarrhea in humans
d) Is usually diagnosed by microbiospy of adhesive tape prints taken from perianal area
4. Fever, diarrhea and eosinophilia in a returned traveler may be due to the following as the sole causative agent?
a) Stronguyloides stercoralis
b) Aeromonas hydrophilia
c) Schistosoma mansoni
d) Capillaria phillipensis
5. The following are nematodes with tissue stage except:
a) Ascaris lumbricoides
b) Hookworms
c) Strongyloides stercoralis
d) Trichuris trichura
6. One the following parasites is a nematode without a tissue stage.
a) Ascaris lumbricoides
b) Strogyloides stercoralis
c) Dracunculus madinensis
d) Enterobius vermicularis
7. How long does ascaris lumbricodes adults live?
a) < 7 years
b) 3 years
c) 1 – 2 years
d) Six months
8. What is the intestinal nematode that looks like a white snake?
a) Taenia saginata
b) Ascaris lumbricoides
c) Trichuris trichura
d) Trichinella spiralis
9. Which nematode causes river blindness?
a) Necator americanus
b) Oncocerca volvulus
c) Enterobius vermicularis
d) Visceral larva migrais
10. All the following worms cause autoinfection except:
a) Strongyloides stercoralis
b) Hymenolepsis nana
c) Capillaria phillipensis
d) Trichra trichura
11. Which drug has the broadest spectrum against helmiths:
a) Praziquented
b) Albendazole
c) Trinidazole
d) Beldizole
12. What is the drug of choice for the treatment of strongyloides stercoralis infection?
a) Dolmectin
b) Trimectin
c) Dontomectrin
d) Ivermectin
13. The following are the symptoms of migrating ascaris larvae except:
a) Fever
b) Chest pain
c) Wheezing
d) Dizziness
14. What age range is Enterobius vermicularis most prevalent?
a) < 5 years
b) 5 – 10 years
c) < 10 years
d) > 15 years
15. Which of the following organisms causes visceral larva migrans
a) Toxocara cati
b) Taenia saginata
c) Taenia solium
d) S. mansoni
16. Which of the following is the major cause of anaemia:
a) Ancylostome adodenale
b) H. nana
c) H. diminuta
d) Trichomonas vaginalis
17. Hookwoms infect babies through:
a) Feacal oral route
b) Breast milk
c) Blood transfusion
d) Bottle feeding
18. Preventive strategies against toxocaria canis include the following except.
a) Culling dogs
b) Deworming dogs
c) Covering sand boxes
d) Preventing defecation of dogs in areas where children play
19. High levels of isohemagglutinins against AB blood group antigens are frequently observed in which helmith disease:
a) Visceral larva migrans
b) Cuteneous larva migrans
c) Oncocerciasis
d) Ascariasis
20. Visceral larva migrans is diagnosed using the following methods except.
a) MR or ultrasound against hepatic granulomas
b) Anti-toxocara antibody detection
c) Anti-body detection against blood group antigens
d) None of the above
SECTION B – Answer ALL Question.
21. Using a flow diagram only. Describe the life cycle of schistosoma mansoni.[6 marks]
22. Explain the meaning of the following terms.
a) Pathogenesis [6 marks]
b) Exiology [6 marks]
c) Symbiosis [6 marks]
23. Briefly describe any six symptoms that are caused by hookworms. [6 marks]
24. Briefly describe the differences between S. mansoni and S. japonicum [6 marks]
25. Describe autoinfection with strongyloides stercoralis. [6 marks]
SECTION C – Answer any ONE Question
26. Write an essay on the topic “Control of Bilhazia”. [20 marks]
27. Describe the importance of worms to humans. [20 marks]
28. Discuss ascariasis, its symptoms, diagnosis, treatment and control. [20 marks]
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