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11 Cards in this Set
- Front
- Back
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which immune reactions can cause disease?
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Hypersensitivity and Autoimmunity
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what are the 4 types of hypersensitivity reactions
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type 1-immediate clinical allergy
type 2-antibody dependent type 3 - complex mediated type 4-delayed type |
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Type 1 clinical allergy
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occurs in minutes-IgE against forgein proteins
allergic diseases include hayfever eczema food allergys asthma |
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what is the diagnosis of asthma
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history,skin test, lung function
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what is the treatment of asthma
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allergen avoidance, b2 adrenoreceptor agonists(salbutamol)sodium cromoglycate (mast cell stabilizer). Corticosteroids suppress inflammation
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what is asthma
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chronic difficulty breathing, chronic inflammation
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What are types of allergic reactions in the skin?
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Urticaria-itchy swelling of the skin
angioedema-more diffuse swelling in deeper subcutaneous tissue eczema-atopic dermatitis |
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what is the cause of systemic anaphylaxis
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allegens in the blood such as wasp or bee sting, peanuts penicillin
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How is systemic anaphylaxis treated?
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epinephrine(adrenaline)
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how are allergic reactions prevented?
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Modify patients behaviour and environment
use drugs-Antihistimine(block binding to h1 h2 receptors) immunologic approach=prevent the production of allergen specific IgE |
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what are examples of type 2 hypersensitivity reactions
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transfusion reactions
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