6 results
Effect of Selected Diseases on Complement Levels - C3, C4
 • SLE C3 ↓ C4 ↓↓
Selected Diseases on Complement ... ↓↓ • MCGN type ... • Cryo C3 ↓ C4 ↓ ... ThePeanutKidney #Complement ... #differential #
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Types: • Type ... • Low serum C4 ... complement level ... • Vasculitis ... #classification
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... staining): • Low Complement ... Glomerulonephritis #Vasculitis ... #differential # ... diagnosis #algorithm
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Skin Disease Classification ... permanent alopecia Differential ... Kikuchi disease • Type-I ... levels (C3 and C4 ... activity • C3 C4
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Agglutinin Disease 3 Types ... Cryoglobulins (Vasculitic ... hemolysis • C3↓ C4 ... younger pts) Differential ... temperatures by fixing complement
IGG-4 RELATED DISEASE

WHAT?
 • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
dysfunction PATHOPHYSIOLOGY ... • Pancreas: Type ... aortitis, mimics vasculitis ... - ↑ IgE, ↓ complement ... • Classification