The Calgary Guide to Understanding Disease @TheCalgaryGuide
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pathophysiology immunology diagnosis hypersensitivityreaction anaphylaxis classification definitions hypersensitivity msk reactions types anticonvulsants differential disruptors femur fracture fractures healing management mechanism
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 ... • Hay fever (allergic
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 ... causes development ... of allergen-specific ... Allergic reaction ... Initial exposure to allergen
Hypersensitivity: Definitions • Type I - Production of lgE Abs that bind to harmless allergens and
leading to an allergic ... cell surfaces causes ... leading to an allergic ... causes development ... An allergic reaction
Allergic Rhinitis: Pathogenesis and clinical findings 1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
Allergic Rhinitis ... Allergy Sensitization ... Tissue edema #Allergic
Type III Hypersensitivity: Pathogenesis and clinical findings Definition: Small antigen-antibody complexes (produced from normal immune response to
self-antigens are the cause ... antigens are the cause ... HypersensitivityReaction #Allergy
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
Anticonvulsants as Mood Stabilizers: Mechanism and Side-effect Examples: Valproate, Carbamazepine, Lamotrigine • Mild anticholinergic effect -> Drowsiness
constipation • Allergic ... Systemic effect -> Nausea
Type II Hypersensitivity: Pathogenesis and clinical findings Definition: When antigens bind to the body's cell surfaces, forming
HypersensitivityReaction #Allergy
Anaphylaxis: Treatments (Acute) Additional Info: • IV steroids may be considered for prevention of late phase reactions.
provided, as well as allergy
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