6 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
peanuts), Hay fever ... Penicillin-induced drug reaction ... Antigen-Ab immune complexes ... Dermatitis (ie. reaction ... #Allergic #Reactions
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Anaphylaxis, Hay fever ... Antigen-antibody complex ... Antigen-antibody complexes ... they activate complement ... #types #allergy
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
Type I Hypersensitivity ... reaction. ... complex -> Allergen-antibody ... complexes bind ... peanuts) • Hay fever
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
, seasonal hay fever ... antigen, leading to complement ... Antigen-antibody complexes ... Complement activation ... #Diagnosis #Reactions
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
Type II Hypersensitivity ... antibody-mediated immune reaction ... activates the complement ... cell surfaces #Type2 ... #Allergy #Immunology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tracts Immune Complex ... Coronary arteries - Fever ... disease, drug reactions ... Vasculitis: • Fevers ... against MPO • Complement