7 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
peanuts), Hay fever ... Antigen-Ab immune complexes ... Dermatitis (ie. reaction ... Allergy #Allergic #Reactions ... #Types #Classification
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
table of types of hypersensitivity ... Allergen-specific lgE causes ... Anaphylaxis, Hay fever ... Antigen-antibody complex ... allergy #table #classification
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
Hypersensitivity ... cell surfaces causes ... antigen-surface complex ... #Hypersensitivity ... #Types #Classification
Serious Bacterial Illness (SBI):
1) UTI and pyelonephritis
Most common cause of SBI
Accounts for 3-8% of uncharacterized fevers
Female
pyelonephritis Most common cause ... uncharacterized fevers ... (particularly complex ... Diagnosis #Peds #EM ... #Classification
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... , seasonal hay fever ... Antigen-antibody complexes ... #Types #Classification ... Allergy #Diagnosis #Reactions
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tracts Immune Complex ... tract, and often causes ... disease, drug reactions ... Vasculitis: • Fevers ... #rheumatology #classification
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
disease, drug reactions ... Vasculitis: • Fevers ... pauci-immune GN Immune Complex ... tract, and often causes ... inflammation Hypersensitivity