glomerulonephritis

Autoimmune associations, membranous, minimal change, FSGS
Etiology Post-streptococcal glomerulonephritis: 1-2 weeks after throat infection or 6/52 after skin infection
Associated with autoimmune hepatitis
Clinical presentation Haematuria, oedema, hypertension (diastolic >80 or >90 if age>13), AKI
Pathogenesis - Damage to glomerulus → compensatory ↑ BP
- Damage to filtration mechanism → protein and blood in urine
- Loss of filtration capacity → AKI
Diagnostic investigations Quantify damage - Urine dip → urine protein-/albumin-creatinine ratio; U+E
Underlying cause - ASOT, Complement (expect ↓ C3)
Management depends on underlying cause
Minimal change: steroids