The nurse knows that Type IV Hypersensitivity Reaction involves which of the following?
Histamine release
T-lymphocyte memory cells
Immunosuppression
Antigen/antibody interaction
The Correct Answer is B
Histamine release: Histamine release is characteristic of Type I hypersensitivity reactions (immediate hypersensitivity) rather than Type IV.
T-lymphocyte memory cells: Type IV hypersensitivity is a delayed response mediated by T-lymphocytes, not antibodies.
Immunosuppression: Immunosuppression is not directly related to hypersensitivity reactions.
Antigen/antibody interaction: This is characteristic of Types I, II, and III hypersensitivity reactions, not Type IV.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Antigen-antibody complexes: These are involved in Type III hypersensitivity reactions, not in Hashimoto thyroiditis.
B. Autoantibodies: Hashimoto thyroiditis is an autoimmune disorder where autoantibodies target thyroid peroxidase (TPO) and thyroglobulin, leading to inflammation and destruction of thyroid cells.
C. Viral infection: Although some autoimmune conditions may have viral triggers, Hashimoto's is not directly caused by a viral infection.
D. Bacterial infection: Bacterial infections do not cause Hashimoto thyroiditis.
Correct Answer is C
Explanation
A. Urticaria: While hives indicate an allergic reaction, they are less immediately life-threatening than respiratory symptoms.
B. Pulse rate 104/min: Mild tachycardia may be a sign of a systemic response but is not the priority concern.
C. Wheezing: Wheezing indicates airway compromise, a hallmark of anaphylaxis, and requires immediate intervention.
D. BP 98/62: This blood pressure is on the lower side but not critical without other symptoms.
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