MLS 335 Practice Exam 4 Lecture 15

58 Questions | Total Attempts: 53

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Diseases Quizzes & Trivia

Questions and Answers
  • 1. 
    Organisms that cause systemic diseases share these characteristics?
    • A. 

      Mode of transmission, dimorphism, systemic semination

    • B. 

      Mode of transmission, dimorphism,systemic dissemination

    • C. 

      Demographic area, unimorphism, systemic dissemination

  • 2. 
    Mode of transmission of systemic diseases?
    • A. 

      Inhalation of infectious conidia

    • B. 

      Ingestion of infectious conidia

    • C. 

      Cutaneous exposure of conidia

  • 3. 
    What temperature does yeast form at? Mold?
    • A. 

      25C: 37C

    • B. 

      37C: 25C

    • C. 

      42C: 25C

  • 4. 
    Known as Gilchrist’s disease?
    • A. 

      Blastomyces enteritis

    • B. 

      Coccidioides immitis

    • C. 

      Blastomyces dermatitidis

  • 5. 
    Blastomyces dermatitis is endemic in what North American region?
    • A. 

      Michigan and Detroit river basin

    • B. 

      Mississippi and Ohio river basin

    • C. 

      Colorado and Colorado river basin

  • 6. 
    Blastomyces dermatitidis occurs naturally in what 2 animals?
    • A. 

      Cats and mice

    • B. 

      Sheep and cats

    • C. 

      Dogs and horses

  • 7. 
    Blastomyces dermatitidis is most prevalent in who and from what type of exposure?
    • A. 

      Old-aged men: water

    • B. 

      Middle-aged men: soil

    • C. 

      Middle-aged women: soil

  • 8. 
    What is the clinical infection pathophysiology of Blastomyces dermatitidis?
    • A. 

      Asymptomatic-> Pulmonary disease-> Invasive disease

    • B. 

      Asymptomatic-> Pulmonary disease-> cardiac disease

    • C. 

      Symptomatic-> Invasive disease-> gasteritis

  • 9. 
    Blastomyces dermatitidis is not fatal?
    • A. 

      False

    • B. 

      True

  • 10. 
    Diagnosis of Blastomyces dermatitidis is based on what 2 samples?
    • A. 

      Saliva & underneath nails

    • B. 

      Sputum & exudative material from cutaneous lesions and tissue

    • C. 

      Urine & subcutaneous scrapings

  • 11. 
    Direct Microscopic Exam of Blastomyces dermatitidis shows?
    • A. 

      Yeast cells with double walls & buds connected by broad base

    • B. 

      Small yeast cells – may be seen in monocytes and macrophages

    • C. 

      Narrow neck between mother and daughter cells

  • 12. 
    Stained Blastomyces dermatitidis shows what?
    • A. 

      Fluorescent Antibody

    • B. 

      Fluorescent Antigen

    • C. 

      Dark Antigen

  • 13. 
    Colony culture characteristics of Blastomyces dermatitidis at 25C?
    • A. 

      White,hard,concentric circles

    • B. 

      Black,fluffy,concentric spirals

    • C. 

      White,fluffy,concentric circles

  • 14. 
    Blastomyces dermatitidis resembels what other colony microscopically?
    • A. 

      H. capsulatum

    • B. 

      C. immitis

    • C. 

      P. marneffei

  • 15. 
    What is the microscopic morphology of Blastomyces dermatitidis at 25C?
    • A. 

      Large multipolar budding

    • B. 

      Oviod to dumbbell shaped

    • C. 

      Elliptical fission (septate) yeasts inside phagocytes

  • 16. 
    What is the sexual form of Blastomyces dermatitidis?
    • A. 

      Diffusion

    • B. 

      Budding

    • C. 

      Teleomorph

  • 17. 
    How is Blastomyces dermatitidis identified?
    • A. 

      Conversion from mold to yeast at 37C

    • B. 

      Conversion from yeast to mold at 37C

    • C. 

      Conversion from mold to yeast at 25C

  • 18. 
    Fungal Immunodiffusion Test (FID) is used to detect what?
    • A. 

      Endoantigens

    • B. 

      Exoantigens

    • C. 

      Enteroantigens

  • 19. 
    What supernatant solution is used for Fungal Immunodiffusion Test (FID)?
    • A. 

      Frozen

    • B. 

      Diluted

    • C. 

      Concentrated

  • 20. 
    What exoantigen is identified in B. dermititidis?
    • A. 

      HL

    • B. 

      A

    • C. 

      H

  • 21. 
    What exoantigen is identified in H. capsulatum?
    • A. 

      H,M

    • B. 

      A,L

    • C. 

      HL

  • 22. 
    What exoantigen is identified in C. immitis?
    • A. 

      F,HL,HS

    • B. 

      G,HV,HI

    • C. 

      A,HM,HT

  • 23. 
    What exoantigen is identified in P. brasiiensis?
    • A. 

      4,5,6

    • B. 

      1,2,3

    • C. 

      7,8,9

  • 24. 
    Histoplasma capsulatum is endemic in what Northern American areas?
    • A. 

      Michigan,Maine,Texas

    • B. 

      Ohio,Mississippi,Missouri

    • C. 

      Florida,Georgia,Tennesse

  • 25. 
    Histoplasma capsulatum causes all of the following disorders? check all that apply.
    • A. 

      Reticuloendothelial cytomycosis

    • B. 

      Cave disease

    • C. 

      Spelunker's disease

    • D. 

      Conidia's disease

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