2857 results
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mechanism of Action: Allergen-specific ... lgE causes mast-cell ... hours - Examples: Anaphylaxis ... Hay fever, Food allergies ... , Drug allergies
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
bind to harmless allergens ... Sensitization" to Allergen ... Initial exposure to allergen ... after clearance of allergen ... conjunctivitis • Anaphylaxis
Causes of Urticaria

Immunoglobulin E (IgE) mediated

 - Aeroallergens

 - Contact allergen

 - Food allergens

 - Insect
Causes of Urticaria ... Aeroallergens - Contact allergen ... - Food allergens ... mediated - Contact allergen ... Mediated #NonIgE #Causes
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 ... Initial exposure to allergen ... recognize antigen on allergen's
Anaphylaxis: Signs and Symptoms
Anaphylaxis: when any egg of three conditions is met:
1. Acute onset of skin/mucosal
Anaphylaxis: Signs ... and Symptoms Anaphylaxis ... exposure to a likely allergen ... exposure to known allergen ... Angioedema #Anaphylaxis
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Soluble antigen - Allergen-specific ... When the specific allergen ... Local and systemic anaphylaxis ... hay fever, food allergies ... , and drug allergies
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... Ex: Antibiotic allergies ... cephalosporin), Food allergies ... Immunological Target: Allergen
Occult Causes of Non-Response to Vasopressors

vital disclaimer: the cognitive response to hypotension should not be reaching
Occult Causes of ... response -> cognitive pause ... hypothyroid - anaphylaxis ... toxicologic - 2nd cause ... #Differential #Causes
Asthma: immunopathogenesis. 
Allergens attach to, and are taken up by, dendritic cells that he the respiratory
Allergens attach ... interaction of the allergen ... degranulate when the allergens
Assessment of the Child with Eczema
Distribution of atopic eczema - The distribution of eczema tends to
Causes of exacerbation ... Ingestion of an allergen ... an irritant or allergen ... - What causes exacerbation ... food or other allergens