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When a person has an allergic reaction to a bee sting, which type of hypersensitivity response is occurring?

A) Type I
B) Type II
C) Type III
D) Type IV

A) Type I

The most severe type I hypersensitivity response is:

A) eczema.
B) allergic rhinitis.
C) serous otitis.
D) anaphylaxis.

D) anaphylaxis.

Which of the following hypersensitivity reactions involves the formation of antibodies against tissue-specific antigen?

A) Type I
B) Type II
C) Type III
D) Type IV

B) Type II

The microorganism that causes acquired immunodeficiency syndrome (AIDS) is a:

A) gram-negative bacterium.
B) gram-positive bacterium.
C) retrovirus.
D) protozoan.

C) retrovirus.

A person with type AB blood is a universal:

A) bone marrow transplant donor.
B) bone marrow transplant recipient.
C) blood donor.
D) blood recipient.

D) blood recipient.

What is the effect of H1 receptors for histamine on smooth muscle tissue?

A) Bronchodilation
B) Endothelial cell retraction
C) Prolonged vasoconstriction
D) All of the above

B) Endothelial cell retraction

Hyperacute allograft rejection is caused by:

A) cytokines and growth factors produced by trauma to vascular endothelial cells.
B) preformed antibodies that react immediately with the graft.
C) Tc and NK cell destruction of the graft.
D) production of antibodies to the new graft by B lymphocytes.

B) preformed antibodies that react immediately with the graft.

Which of the following hypersensitivity reactions involves the formation of antigen-antibody (immune) complexes that get deposited on vessel walls or in extravascular tissue?
A) Type I
B) Type II
C) Type III
D) Type IV

C) Type III

Which pair of relatives has the highest chance of sharing both HLA haplotypes, making them a good match for an organ transplant from one to the other?

A) Mother and daughter
B) Father and son
C) Siblings
D) Mother and father

C) Siblings

A positive tuberculin skin test for detecting the presence of tuberculosis is indicative of which type of hypersensitivity reaction?
A) Type I
B) Type II
C) Type III
D) Type IV

D) Type IV

Which of the following hypersensitivity reactions is mediated by Tc and Td cells?
A) Type I
B) Type II
C) Type III
D) Type IV

D) Type IV

What type of reaction occurs when the body mounts an aggressive response against an organ transplanted from another person?
A) Type I hypersensitivity
B) Autoimmune
C) Alloimmune
D) Immunosuppressive

C) Alloimmune

Type I hypersensitivity is mediated by which of the following antibodies?
A) IgG
B) IgD
C) IgM
D) IgE

D) IgE

A person with type O blood has which of the following antigens present on their red blood cells?
A) A and B
B) Rh
C) O
D) None of the above

D) None of the above

A child who has a history of many allergies, recurrent respiratory tract infections, and chronic yeast infections of the gastrointestinal tract may have an underlying immune disease called:
A) severe combined immunodeficiency.
B) IgA deficiency.
C) Bruton agammaglobulinemia.
D) autoimmunity.

...

Individuals with immunodeficiencies are at risk for:
A) hypersensitivity reactions.
B) fungal infections only.
C) opportunistic infections.
D) autoimmune diseases.

C) opportunistic infections.

The microorganism that causes AIDS can be transmitted through:
A) heterosexual intercourse.
B) breast milk.
C) blood transfusions.
D) all of the above.

D) all of the above.

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