66 results
Allergic Reaction Classification
Type 1 reaction: Acute anaphylactic reaction
Type 2 reaction: Cytotoxic reaction
Type 3 reaction: Immune complex
Type
Allergic Reaction ... Classification ... : Immune complex ... #Allergic #Reaction ... #Classification
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
antigen-surface complex ... antibody-antigen complexes ... An allergic reaction ... #Allergic #Reactions ... #Types #Classification
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Penicillin-induced drug reaction ... Antigen-Ab immune complexes ... Dermatitis (ie. reaction ... #Allergic #Reactions ... #Types #Classification
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
leading to an allergic ... reaction. ... complex -> Allergen-antibody ... complexes bind ... #Immunology #pathophysiology
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
lgE causes mast-cell ... Antigen-antibody complex ... Antigen-antibody complexes ... #types #allergy ... #table #classification
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
hypersensitivity reactions ... Type Ill - Immune Complex-Mediated ... hypersensitivity #reactions ... #Types #Classification ... #Allergy #Diagnosis
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
antigen-surface complex ... antibody-mediated immune reaction ... antigen-surface complex ... against these complexes ... or the entire complex
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 ... #Immunology #pathophysiology
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema - Classification ... exposure • Non-allergic ... drug reaction - ... cell-mediated in > 90% of cases ... #Angioedema #Classification
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
When the specific allergen ... Antigen-antibody complexes ... Hypersensitivity #Types #Classification ... #Pathophysiology ... #Reactions #Table