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 B
Explanation
A. Topical creams and ointments: These are more likely to trigger contact dermatitis, not allergic rhinitis.
B. Airborne pollens and molds: Allergic rhinitis is often triggered by airborne allergens such as pollen, mold spores, and dust mites.
C. Ingested food and medications: These are typically triggers for food allergies or medication allergies, not allergic rhinitis.
D. Injected medications: Although injections can cause allergic reactions, they are not the typical trigger for allergic rhinitis.
Correct Answer is B
Explanation
A. Damage to kidneys, which cause a decrease in erythropoietin production: This describes anemia of chronic disease or kidney-related anemia, not pernicious anemia.
B. Destruction of gastric parietal cells, which decrease intrinsic factor production: Pernicious anemia results from the loss of intrinsic factor, essential for vitamin B12 absorption in the intestine.
C. Decrease in RBC in the bone marrow: This is more characteristic of aplastic anemia or bone marrow suppression rather than pernicious anemia.
D. Hemolysis of RBC: This describes hemolytic anemia rather than pernicious anemia.
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