A) maternal Rh+ cells enter an Rh- fetus.
B) fetal Rh+ cells enter an Rh- mother.
C) maternal Rh- cells enter an Rh+ fetus.
D) fetal Rh- cells enter an Rh+ mother.
E) fetal Rh+ cells enter an Rh+ mother.
Correct Answer
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Multiple Choice
A) autoantibodies.
B) delayed hypersensitivity.
C) congenital absence or immaturity of the thymus gland.
D) failure of B-cell development and maturity.
E) a genetic defect in the development of both T cells and B cells.
Correct Answer
verified
Multiple Choice
A) IgE
B) IgG
C) IgA
D) IgD
E) IgM
Correct Answer
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Multiple Choice
A) sensitizing
B) provocative
C) allergic
D) hypersensitivity
E) desensitizing
Correct Answer
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Multiple Choice
A) isograft.
B) autograft.
C) allograft.
D) xenograft.
E) hypograft.
Correct Answer
verified
Multiple Choice
A) delayed.
B) T-cell-mediated.
C) atopic.
D) antibody-mediated.
E) systemic anaphylactic.
Correct Answer
verified
Multiple Choice
A) autoimmune disease.
B) immunodeficiency.
C) hypersensitivity.
D) transfusion reaction.
E) desensitization.
Correct Answer
verified
Multiple Choice
A) degranulation
B) bonding of allergen to adjacent IgE binding sites on mast cells and basophils
C) binding of IgE by the Fc region to mast cells and basophils
D) histamine acts on smooth muscle
E) prostaglandins cause vasodilation and increased vascular permeability
Correct Answer
verified
Multiple Choice
A) is an antihistamine.
B) reverses constriction of airways.
C) causes desensitization.
D) inhibits the activity of lymphocytes.
Correct Answer
verified
Multiple Choice
A) malnutrition.
B) stress.
C) pregnancy.
D) bacterial infection.
E) radiation treatment.
Correct Answer
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Multiple Choice
A) He can safely receive O- blood even though he makes anti-A antibodies.
B) He can be give types O or B,no matter whether Rh- or Rh+.At this point in time,he does not have anti-Rh antibody.O has no antigens on the blood cells,so he is also safe to receive that type in addition to his own B type.
C) He can be given A+ blood type,in addition to B+.Rh- means that he makes no antibody to Rh.
D) The preferred blood type to give John,in addition to his own B type blood,would be AB.Both types of blood have the B antigen on the cells,so they would correspond to his own antigens.As for Rh,he can receive only Rh- blood since he would have a reaction against Rh+.
Correct Answer
verified
Multiple Choice
A) a sensitizing and provocative dose.
B) an allergen entering the skin.
C) T lymphocytes secreting inflammatory cytokines.
D) the production of itchy papules and blisters.
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) AIDS.
B) adenosine deaminase (ADA) deficiency.
C) DiGeorge syndrome.
D) agammaglobulinemia.
E) SCID.
Correct Answer
verified
Multiple Choice
A) autoantibodies.
B) delayed hypersensitivity.
C) congenital absence or immaturity of the thymus gland.
D) failure of B-cell development and maturity.
E) a genetic defect in the development of both T cells and B cells.
Correct Answer
verified
Short Answer
Correct Answer
verified
View Answer
Multiple Choice
A) desensitization.
B) sensitization.
C) tissue matching.
D) degranulation.
Correct Answer
verified
Multiple Choice
A) inhibit the activity of lymphocytes.
B) bind to histamine receptors on target organs.
C) block synthesis of leukotrienes.
D) relieve inflammatory symptoms.
E) reverse spasms of respiratory smooth muscles.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) sequestered antigen theory
B) forbidden clone theory
C) molecular mimicry theory
D) theory of bystander effect
E) All the choices are currently being investigated as possible explanations.
Correct Answer
verified
Multiple Choice
A) T-cell-mediated
B) antibody-mediated
C) immune complex-mediated
D) immediate
E) Both T-cell-mediated and antibody-mediated are correct.
Correct Answer
verified
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