Mic 541 Exam 4 Actinomycetes And Misc Pathogens

64 Questions | Total Attempts: 606

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Mic 541 Exam 4 Actinomycetes And Misc Pathogens

MIC 541 Exam 4 Actinomycetes and Misc Pathogens


Questions and Answers
  • 1. 
    WHich of the following is not one of the infections discussed in class that is falls under the actinomycetes genera?
    • A. 

      Dental plaque

    • B. 

      Nocardiosis

    • C. 

      Vaginosis

    • D. 

      Actinomycosis

  • 2. 
    Actinomycetes have characteristics of
    • A. 

      Fungi

    • B. 

      Bacteria

    • C. 

      Viruses

  • 3. 
    Actinomycetes form branches or filaments called
    • A. 

      Pili

    • B. 

      Hyphae

    • C. 

      Glycocalyx

  • 4. 
    The clinical manifestations of infection are similar to those of a bacterial infection
    • A. 

      True

    • B. 

      False

  • 5. 
    Actinomycetes are susceptible to penicillin like bacterias
    • A. 

      True

    • B. 

      False

  • 6. 
    Actinomycetes are a form of fungi like bacteria
    • A. 

      True

    • B. 

      False

  • 7. 
    Which of the following are not true regarding actinomycetes?
    • A. 

      Sometimes called thread bacteria

    • B. 

      In composting they give off an earthy smell

    • C. 

      Are primary decomposers of woody stems, newspapers and bark

    • D. 

      Are very common in the soil

    • E. 

      Actinomyces is the most numerous of all actinomycetes

  • 8. 
    Actinomycosis is mainly caused by
    • A. 

      Actinomyces asteroides

    • B. 

      Nocardia asteroides

    • C. 

      Actinomyces israelii

    • D. 

      Actinomyces viscosus

  • 9. 
    What is the most common type of actinomycosis?
    • A. 

      Thoracic

    • B. 

      Abdominal

    • C. 

      Cervicofacial

    • D. 

      Genital

  • 10. 
    Which type of actinomycosis is caused by aspiration into lung and is an extension of cervicofacial form?
    • A. 

      Lower jaw

    • B. 

      Thoracic

    • C. 

      Genital

    • D. 

      Abdominal

  • 11. 
    Genital actinomycosis can be linked to intrauterine devices
    • A. 

      True

    • B. 

      False

  • 12. 
    Which of the following is/are not used in the diagnosis of actinomycosis?
    • A. 

      Examine pus for white or yellow granules

    • B. 

      Immunofluorescence

    • C. 

      Look for G-

    • D. 

      Filamentous

  • 13. 
    Surgical debridement of damaged tissue is a prerequisite to antibiotic therapy for actinomycosis.
    • A. 

      True

    • B. 

      False

  • 14. 
    Which of the following is/are used in the treatment of actinomycosis?
    • A. 

      Surgical debridement

    • B. 

      Tetracycline

    • C. 

      Penicillin G

    • D. 

      Sulfamethoxazole

    • E. 

      Trimethoprim

  • 15. 
    Which of the following is the treatment of choice for actinomycosis?
    • A. 

      Penicillin G

    • B. 

      Sulfamethoxazole

    • C. 

      Trimethoprim

    • D. 

      Tetracycline

  • 16. 
    Nocardiosis is caused by which of the following?
    • A. 

      Actinomyces nocardia

    • B. 

      Nocardia asteroides

    • C. 

      Actinomyces asteroides

    • D. 

      Nocardia actinomyces

  • 17. 
    The main risk factors for nocardiosis are a weakened immune system or chronic lung disease
    • A. 

      True

    • B. 

      False

  • 18. 
    Individuals with normal immune systems cannot acquire nocardiosis
    • A. 

      True

    • B. 

      False

  • 19. 
    Which of the following is/are risk factors for nocardiosis?
    • A. 

      Chronic steroid therapy

    • B. 

      Cancer

    • C. 

      Influenza

    • D. 

      Organ transplant

    • E. 

      Bone marrow transplant

    • F. 

      HIV/AIDS

  • 20. 
    Nocardiosis has a low mortality rate.
    • A. 

      True

    • B. 

      False

  • 21. 
    Which of the following are appropriate treatments for nocardiosis?
    • A. 

      Cotrimazole

    • B. 

      Surgical debridement

    • C. 

      Penicillin G

    • D. 

      Sulfadiazine

  • 22. 
    Whiich of the following is not true in regards to nocardiosis?
    • A. 

      Relapse can occur

    • B. 

      Respiratory infections never require more than a few weeks of treatment

    • C. 

      Poor recovery after systemic infection

    • D. 

      Early diagnosis is important

  • 23. 
    As sinus tracts extend to deep muscle and bone, nocardiosis can develop into ________.
    • A. 

      Periodontitis

    • B. 

      Actinomycititis

    • C. 

      Actinomycetoma

  • 24. 
    Which of the following are true regarding nocardiosis?
    • A. 

      Gram positive

    • B. 

      Acid-fast organisms

    • C. 

      Take 7-10 days to grow on medium

    • D. 

      Microscopic appearance includes granules and filaments

    • E. 

      All of the above are true

  • 25. 
    Actinomyces viscosus attach to enamel surface via....
    • A. 

      Pili

    • B. 

      Extracellular polysaccharides

    • C. 

      Fimbrae

    • D. 

      Sugars on the teeth

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