782 results
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
reactions Type ... I - lgE-Mediated ... (Anaphylaxis) Type ... Immune Complex-Mediated ... IV T-Cell-Mediated
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Mediator ... conjunctivitis Type ... Immunological Mediator ... Immunological Mediator ... Immunological Mediator
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
and Treatment Types ... • Mast cell-mediated ... • Bradykinin Mediated ... • Mast cell-mediated ... Classification #Types
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity Types ... Their Mechanisms Type ... drug allergies Type ... IgG can also mediate ... Type Ill - IgG and
There are 2 Major Types of Angioedema:
 - Mast cell / histamine mediated – usually presents
There are 2 Major Types ... cell / histamine mediated ... - Bradykinin mediated ... Classification #Types
Allergic Contact Dermatitis 
- Erythematous, indurated, scaly plaques 
- T-cell mediated, delayed-type hypersensitivity response to exogenous
plaques - T-cell mediated ... , delayed-type hypersensitivity
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Syndrome, Mainly in Type ... Immune-Mediated ... Types: • Type ... arthritis) • Types ... • Type III Often
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Type IV Hypersensitivity ... entirely T-Cell mediated ... ivy) #TypeIV #Type4
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
Type II Hypersensitivity ... maladaptive antibody-mediated ... cell surfaces #Type2 ... #Type2 #HypersensitivityReaction
Bradykinin-mediated Angioedema
Clinical features: Submucosal oedema (face, extremity, genitalia), Laryngeal dyspnea (25% of deaths), Recurrent attacks of
Bradykinin-mediated ... abdominal pain Types ... Bradykinin vs. histamin-mediated ... #Bradykinin #mediated