1350: Allergic response/Hypersensitivity

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Author:
xiongav
ID:
290974
Filename:
1350: Allergic response/Hypersensitivity
Updated:
2014-12-11 19:43:08
Tags:
NURS
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Description:
4 types of hypersensitivity
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  1. Type I.

    What is the name of this type and what Abo does it involve?
    IgE-mediated hypersensitivity

    Abo: IgE
  2. Type I.

    What may type I cause locally?
    Skin: atopic derm.

    Eyes: conjunctivitis

    Nasopharynx: allergic rhinitis

    Broncho: asthma

    GI: gastroenteritis
  3. Type I.

    What may type I cause systemically?
    Hives/urticaria

    Angioedema

    Anaphylaxis
  4. Type I.

    What are some interventions for type I hypersensitive individuals?
    *Remove agent

    Assess ABCs, LOC, VS

    Call for help

    Monitor & maintain respiratory status
  5. Type I.

    What are some treatments for type I?
    -pharmacotherapy/nonpharmacological

    What should you use in an emergency?
    Epi-pen.

    Anti-histamines/corticosteroids

    Position for shock (high Fowler's)

    Contact physician prior to using herbals, teas, aromatherapy.
  6. Type II.

    What type of hypersensitivity is type II?

    What Abo does type II involve?
    Cytotoxic.

    IgG/IgM (Abo bind w/ antigen)
  7. Type II.

    What causes a reaction in Type II?
    • 1) foreign tissue
    • 2) blood transfusion incompatibility
    • 3) drug reaction
  8. Type III.

    What is the name of type III hypersensitivity and what Abo are involved (same as type II)?
    immune complex-mediated hypersensitivity

    IgG/IgM
  9. What are the local causes of type III?

    What are the systemic causes of type III?
    local: immune complex accumulates & deposits on wall/tissue causing damage.

    • systemic: fever, hives, arthralgia¬†
    • ***Autoimmune disorders
  10. Type IV.

    What is the name of type IV hypersensitivity?

    What is type IV mediated by?
    delayed hypersensitivity

    cell-mediated, NOT Abo.
  11. Type IV.

    What are the causes of type IV hypersensitivity?

    Which hypersensitivity can type IV progress to?
    • exaggerated interaction
    • contact dermititis
    • latex allergy
    • nickel in jewelry

    *Can progress to type I.
  12. What testing should be done first for allergies?
    • Epicutaneous test:
    • intradermal
    • prick
    • path
    • food allergy

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