14 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... Immunological Target: Allergen ... Syndrome, Contact Dermatitis ... #Allergy #Allergic
Allergic Contact Dermatitis 
- Erythematous, indurated, scaly plaques 
- T-cell mediated, delayed-type hypersensitivity response to exogenous
Allergic Contact ... Dermatitis - ... , delayed-type hypersensitivity ... #Contact #Dermatitis ... #Allergic #Allergy
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Type IV Hypersensitivity ... mediated; exposure to allergen ... development of allergen-specific ... Allergic reaction ... Initial exposure to allergen
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
Hypersensitivity ... leading to an allergic ... #Hypersensitivity ... #Allergy #Allergic ... Reactions #Types #Classification
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Soluble antigen - Allergen-specific ... When the specific allergen ... - Contact dermatitis ... #Types #Classification ... Pathophysiology #Allergy
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mechanism of Action: Allergen-specific ... , Eczema, Asthma ... Examples: Contact dermatitis ... reactions #types #allergy ... #table #classification
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
(Eczema) Erythematous ... ) • Nummular Dermatits ... (Discoid Eczema ... • Dyshidrotic Eczema ... anyone - Allergic
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
Types of hypersensitivity ... happypillsrx/ #hypersensitivity ... reactions #Types #Classification ... #Allergy #Diagnosis
Guideline 1 recommends that the highest risk infants — those with severe eczema and/or egg allergy
and/or egg allergy ... Allergy testing ... Allergy tests for ... or food allergy ... #atopic #dermatitis
Eosinophilia - Differential Diagnosis Algorithm
Idiopathic Eosinophilia
Primary Eosinophilia:
 • Primary hypereosinophilic syndrome
 • Eosinophilic Leukemia
 • MPN/MDS
histiocytosis • Allergic ... : Asthma, Eczema ... , Drug Hypersensitivity ... Diagnosis #Algorithm #allergy