Filarial Nematodes Trivia Quiz!

25 Questions | Total Attempts: 4677

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Filarial Nematodes Trivia Quiz!

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Questions and Answers
  • 1. 
    Wuchereria bancrofti and Brugia microfilariae have a diurnal periodicity.
    • A. 

      True

    • B. 

      False

  • 2. 
    If an unsheathed microfilariae that is 250 - 300 microns long (big at x100) has nuclei that don't go to its tail tip it is:
    • A. 

      Mansonella Ozzardi

    • B. 

      Onchocerca volvulus

    • C. 

      Brugia malayi

    • D. 

      Wuchereria bancrofti

  • 3. 
    The L1 larvae of W.bancrofti and B.malayi develop to L3 larvae in the...
    • A. 

      Human blood

    • B. 

      Midgut of the mosquito vector

    • C. 

      Thoracic muscles of the mosquito vector

    • D. 

      Human lymphatics

  • 4. 
    Pulmonary tropical eosinophilia syndrome occurs in Loa loa infection.
    • A. 

      True

    • B. 

      False

  • 5. 
    Mass drug administration for lymphatic filariasis has to occur for how long and in what population percentage to achieve eradication.
    • A. 

      4 - 6 years and 70% population coverage.

    • B. 

      2 - 4 years and 50% population coverage

    • C. 

      4 - 6 years and 90% population coverage

    • D. 

      6-7 years and 80% population coverage

  • 6. 
    Wuchereria bancrofti is found...
    • A. 

      In Asia

    • B. 

      In Africa

    • C. 

      In Africa, Asia and South America

    • D. 

      In Africa and South America

  • 7. 
    What drug is used to treat lymphatic filariasis caused by Wuchereria bancrofti in areas of Africa co-endemic for Onchocerciasis?
    • A. 

      Albendazole

    • B. 

      DEC

    • C. 

      Ivermectin

    • D. 

      Doxycycline

  • 8. 
    Treatment of Wolbachia with doxycycline causes sterilization of the female worms.
    • A. 

      True

    • B. 

      False

  • 9. 
    The vector for Onchocerciasis is:
    • A. 

      Anopheles mosquito

    • B. 

      Blackfly

    • C. 

      Culicoides midge

    • D. 

      Chrysops

  • 10. 
    These three forms of skin disease may occur in Onchocerciasis.
    • A. 

      Leopard skin depigmentation

    • B. 

      Larval currens

    • C. 

      Sowda

    • D. 

      Lizard skin atrophy

  • 11. 
    The Mazotti test involves giving DEC to patients with Onchocerciasis.
    • A. 

      True

    • B. 

      False

  • 12. 
    Onchocercoma nodules occur mainly...
    • A. 

      Around the eyes

    • B. 

      On the hands

    • C. 

      Over bony prominences

    • D. 

      On the legs

  • 13. 
    Mansonella ozzardi is found in the old world.
    • A. 

      True

    • B. 

      False

  • 14. 
    Mansonella microfilariae are unsheathed.
    • A. 

      True

    • B. 

      False

  • 15. 
    Which of the following are possible clinical forms of a Mansonella infection. 
    • A. 

      Asymptomatic

    • B. 

      Pruritis

    • C. 

      Calabar-like swellings

    • D. 

      Facial oedema

  • 16. 
    Which of the following are Mansonella perstans vectors?
    • A. 

      Blackfly

    • B. 

      Chrysops

    • C. 

      Culicoides midge

    • D. 

      Tsetse

  • 17. 
    Mansonella streptocerca can be diagnosed with a skin snip.
    • A. 

      True

    • B. 

      False

  • 18. 
    A microfilaria with a loose sheath, nuclei to its tail tip, bent tail and bigger than 250 microns is
    • A. 

      W.bancrofti

    • B. 

      Loa loa

    • C. 

      M.streptocerca

    • D. 

      O.volvulus

  • 19. 
    Loa loa microfilariae have a diurnal periodicity
    • A. 

      True

    • B. 

      False

  • 20. 
    Mansoni mosquitoes are vectors of Brugia malayi.
    • A. 

      True

    • B. 

      False

  • 21. 
    What do patients have to be monitored for when given DEC for Loa loa
    • A. 

      Anaphylaxis

    • B. 

      Heart arrythmias

    • C. 

      Brain inflammation

    • D. 

      They don't have to be monitored

  • 22. 
    An unsheathed micofilaria, small at x100 (less than 250 microns), nuclei to its tail tip and a bent tail is Mansonella perstans
    • A. 

      True

    • B. 

      False

  • 23. 
    A calabar swelling is caused by angioedema.
    • A. 

      True

    • B. 

      False

  • 24. 
    What is used to treat Mansonella ozzardi?
    • A. 

      DEC

    • B. 

      Single dose of ivermectin

    • C. 

      Albendazole

    • D. 

      Multiple doses of ivermectin

  • 25. 
    Transient punctate keratitis is a clinical manifestation of infection with Brugia.
    • A. 

      True

    • B. 

      False

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