268 results
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
hypersensitivity reactions ... Mediators: lgE - Antigen ... Form: Soluble antigen ... Acute transfusion reaction ... hypersensitivity #reactions
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
to an allergic reaction ... against the antigen ... cell surface, and antigen-surface ... to an allergic reaction ... small antibody-antigen
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Penicillin-induced drug reaction ... Immunological Target: Antigen-Ab ... Dermatitis (ie. reaction ... Allergy #Allergic #Reactions
Allergic Rhinitis: Pathogenesis and clinical findings

1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
Sensitization -> Antigen ... class II) process antigen ... Primary Reaction ... Secondary Reaction ... after the primary reaction
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
lgE - Soluble antigen ... IgM - Cell-bound antigen ... IgM - Soluble antigen ... - Antigen-antibody ... Allergy #Diagnosis #Reactions
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Allergic reaction ... Macrophage engulfs antigen ... -> Antigen presentation ... cells recognize antigen
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
surfaces, forming an "antigen-surface ... antibody-mediated immune reaction ... Antigen binds receptor ... platelets) -> An "antigen-surface ... against either the antigen
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
Delayed autoimmune reaction ... mimicry -> GAS antigen
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
hypersensitivity) reaction ... to inhaled antigen
Estimated Incidence of Transfusion Reactions
Graphical Depiction of transfusion reactions ordered from most highest to lowest incidence.
#Diagnosis
of Transfusion Reactions ... of transfusion reactions ... Transfusion #Consent #Reactions