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Type 1 Hypersensitivity 40 Quiz Review Questions Correctly Solved|2024 $6.49   Add to cart

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Type 1 Hypersensitivity 40 Quiz Review Questions Correctly Solved|2024

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Complement plays a role in which hypersensitivity - ️️type 2 and type 3 Describe the size of the immediate reaction to an allergen and the late phase reaction - ️️-immediate is very confined and localized -late-phase is very broad How does corticosteroids reduce asthma - ️️-it inhibi...

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  • August 4, 2024
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  • 2024/2025
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  • Type 1 Hypersensitivity
  • Type 1 Hypersensitivity
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jackline98
Complement plays a role in which hypersensitivity - ✔ ✔ type 2 and type 3

Describe the size of the immediate reaction to an allergen and the late phase reaction - ✔ ✔ -
immediate is very confined and localized

-late-phase is very broad

How does corticosteroids reduce asthma - ✔ ✔ -it inhibits the formation of amines, TNF, IL-4, IL-5
and other cytokines to reduce inflammation

How does Cromolyn reduce asthma? - ✔ ✔ it inhibits mast cell degraulation that leads to bronchial
constriction

How does sensitization work in type 1 hypersensitivity? - ✔ ✔ -each successive exposure to an
allergen produces more IgE

-this IgE replaces other allergen specific IgE on mast cells

-each exposure causes more mast cells to be primed for the next exposure

In what two situations can hypersensitivity occur (broad definition) - ✔ ✔ -uncontrolled response to
foreign antigen

-failure of self-tolerance

Type 1 mast degranulation in GI can cause - ✔ ✔ intestinal hypermotility

Type 1 mast degranulation in the lungs causes - ✔ ✔ broncho-constriction

Type 1/2/3 hypersensitivity are mediated by - ✔ ✔ antibodies

Type 4 hypersensitivity is mediated by - ✔ ✔ T cells

What are the characteristics of allergens that contribute to a hypersensitivity reaction - ✔ ✔ -
proteins

-enzymatically active protease

-low dose = favors IL-4 producing T cells

-highly soluble

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