The Calgary Guide to Understanding Disease @TheCalgaryGuide
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pathophysiology hypersensitivityreaction anaphylaxis diagnosis classification definitions hypersensitivity management reactions signs symptoms treatments type1 type2 type3 type4 typei typeiii typeiv types
Type I Hypersensitivity: Pathogenesis and clinical findings Definition: Production of lgE Antibodies that bind to harmless allergens
leading to an allergic ... Sensitization" to Allergen ... Initial exposure to allergen ... after clearance of allergen ... #Immunology #pathophysiology
Hypersensitivity: Summary Type I Hypersensitivity: • Immunological Mediator: lgE • Immunological Target: Allergen Molecules • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... Immunological Target: Allergen ... Hypersensitivity #Allergy ... #Allergic #Reactions
Type IV Hypersensitivity: Pathogenesis and clinical findings Definition: Unique because it is entirely T-Cell mediated; exposure to
mediated; exposure to allergen ... development of allergen-specific ... Allergic reaction ... Initial exposure to allergen ... HypersensitivityReaction #Allergy
Type III Hypersensitivity: Pathogenesis and clinical findings Definition: Small antigen-antibody complexes (produced from normal immune response to
HypersensitivityReaction #Allergy ... #Immunology #pathophysiology
Anaphylaxis: Signs and Symptoms Anaphylaxis: when any egg of three conditions is met: 1. Acute onset of skin/mucosal
exposure to a likely allergen ... exposure to known allergen ... pathophysiology #immunology
Anaphylaxis: Treatments (Acute) Additional Info: • IV steroids may be considered for prevention of late phase reactions.
provided, as well as allergy ... pathophysiology #immunology
Type II Hypersensitivity: Pathogenesis and clinical findings Definition: When antigens bind to the body's cell surfaces, forming
HypersensitivityReaction #Allergy ... #Immunology #pathophysiology
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