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NUR228 - HYPERSENSITIVITY EXAM QUESTIONS AND ANSWERS

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NUR228 - HYPERSENSITIVITY EXAM QUESTIONS AND ANSWERS ...

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  • August 24, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NUR228 - HYPERSENSITIVITY
  • NUR228 - HYPERSENSITIVITY
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NUR228 - HYPERSENSITIVITY EXAM
QUESTIONS AND ANSWERS


What is hypersensitivity? - ANSWER Inappropriate triggering of normal immune
ANSWER.

Excess (overproduction)

OR

Causes negative consequences on the body.


What are the basic causes of hypersensitivity? - ANSWER Antigen-antibody
ANSWER or antigen-lymphocyte interaction.


What are the four kinds of hypersensitivity? - Types I, II, and III (mediated by
antibodies produced by B cells, which when activated form plasma cells).


Type IV (mediated by T lymphocytes).


Which kind of hypersensitivity is mediated by antibodies? - Answer Types I, II,
and III.


What types of hypersensitivity are mediated by T cells? - Answer Type IV.


What is Type 1 Hypersensitivity? - ANSWER An immediate reaction occurs upon
antigen sensitization.


What are some types of antigens? - ANSWER Environmental (pet dander, bee
stings), Food (nuts, shellfish, eggs), and Medicine (penicillin, contrast dye).

, What are the causes of Type I hypersensitivity? - ANSWER Genetic relationship,
with a greater likelihood if one or both parents are allergic.


Which cells are involved in Type I hypersensitivity? - ANSWER B lymphocytes
produce IgE antibodies, which bind to mast cells.


What is the function of mast cells in Type I hypersensitivity? - ANSWER Mast
cells circulate throughout the body as part of the immune system.


What are the clinical signs of strong vasodilation? - ANSWER Stuffy nose, Lower
blood pressure, Wheals on skin


What are the clinical signs of enhanced vascular permeability? - ANSWER Edema,
runny nose.


What are the clinical signs of bronchial smooth muscle constriction? - ANSWER
breathing issues, wheezing


What are the clinical effects of activating irritating receptors? - ANSWER Itching
(pruritis).


What are atopic reactions? - ANSWER Inheritance of allergy sensitivity.


What are some types of atopic reactions? - ANSWER Allergic rhinitis, asthma, and
urticaria.


What are the most common causes of atopic reactions? - ANSWER Pollen, dust,
mold, and animal dander.

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