Micro Hypersensitiviy Dr Sloma

9 Questions | Total Attempts: 402

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Immune System Quizzes & Trivia

Questions and Answers
  • 1. 
    . The principle difference between type II and type III hypersensitivity is:
    • A. 

      The class (isotype of antibody)

    • B. 

      Whether the antibody reacts with the antigen on the cell or reacts with antigen before it interacts with the cell

    • C. 

      The participation of complement

    • D. 

      The participation of T cells

  • 2. 
    A child stung by a bee experiences respiratory distress within minutes and lapses into unconsciousness. This reaction is probably mediated by:
    • A. 

      IgE antibody

    • B. 

      IgG antibody

    • C. 

      Sensitized T cells

    • D. 

      Complement

    • E. 

      IgM antibody

  • 3. 
    A patient with severe asthma gets no relief from antihistamines. The symptoms are MOST likely to be caused by:
    • A. 

      IL-2

    • B. 

      Leukotrienes

    • C. 

      Serotonin

    • D. 

      Bradykinin

  • 4. 
    Hypersensitivity to penicillin and hypersensitivity to poison oak are both:
    • A. 

      Mediated by IgE antibody

    • B. 

      Mediated by IgG and IgM antibody

    • C. 

      Intiated by haptens

    • D. 

      Initiated by Th2 cells

  • 5. 
    Your patient has been treated for endocarditis with Penicillin G for the past 2 weeks. She now has fever and maculopapular erythematous rash over her chest and abdomen. A urinalysis shows significant protein in the urine. If the fever, rash and proteinuria are immunologic in origin, which one of the following is MOST likely to be involved?
    • A. 

      IgG and complement

    • B. 

      IgE and histimine

    • C. 

      IL-2 and cytotoxic T cells

    • D. 

      Gamma interferon and macrophages

  • 6. 
    A child disturbs a wasp nest, is stung repeatedly, and goes into shock within minutes, manifesting respiratory failure and vascular collapse. This is MOST likely due to;
    • A. 

      Systemic anaphylaxis

    • B. 

      Serum sickness

    • C. 

      An Arthus reaction

    • D. 

      Cytotoxic hypersensitivity (Some references refer to type II hypersensitivity as “cytotoxic hypersensitivity”)

  • 7. 
    Reaction to poison ivy or poison oak is:
    • A. 

      An-IgG mediated response

    • B. 

      An IgE-mediated response

    • C. 

      A cell-mediated response

    • D. 

      An Arthus reaction

  • 8. 
    A delayed hypersensitivity reaction is characterized by:
    • A. 

      Edema without a cellular infiltrate

    • B. 

      An infiltrate composed of neutrophils

    • C. 

      An infiltrate composed of helper T cells and macrophages

    • D. 

      An infiltrate composed of eosinophils

  • 9. 
    Regarding anaphylactic (type I) and immune complex (type III) hypersensitivities, which of the following is the MOST accurate?
    • A. 

      IgE is involved in both anaphylactic and immune complex hypersensitivities

    • B. 

      Complement is involved in both anaphylactic and immune complex hypersensitivities

    • C. 

      Less antigen is typically needed to trigger and anaphylactic reaction than an immune complex reaction

    • D. 

      Neutrophils play more important role in anaphylactic reactions than in immune complex reactions

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