348 results
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 ... , creating an allergen-antibody ... complex -> Allergen-antibody
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
Type III Hypersensitivity: Pathogenesis and clinical findings
Definition: Small antigen-antibody complexes (produced from normal immune response to
Small antigen-antibody ... self-antigens are the cause ... antigens are the cause ... HypersensitivityReaction #Allergy
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema: • Acute allergic ... exposure • Non-allergic ... cell-mediated in > 90% of cases ... or avoiding the allergen ... Treatment #management #allergy
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Soluble antigen - Allergen-specific ... When the specific allergen ... - IgG or IgM antibody ... antigen - Antigen-antibody ... Pathophysiology #Allergy
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mechanism of Action: Allergen-specific ... lgE causes mast-cell ... Mediators: Antigen-antibody ... Action: Antigen-antibody ... reactions #types #allergy
Causes of Hemolytic Anemia - Differential Diagnosis
Inherited
 • Membrane
 • Internal
    - Hemoglobin
Causes of Hemolytic ... Membrane - Antibody ... Differential #Diagnosis #Causes
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... infection - Allergic ... disease Rare causes ... + T cells) - Allergic
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 ... accumulation of small antibody-antigen ... causes development
NAACP mnemonic for the major causes of Eosinophilia 
N = Neoplasia (CML, Hodgkins lymphoma) 
A =
for the major causes ... lymphoma) A = Allergy ... #Differential #Causes