Lupus Nephritis - Diagnostic approach to kidney disease associated with systemic lupus erythematosus (SLE) SLE patient develops new: • Proteinuria > 500 mg/d • Nephritic urine sediment (dysmorphic RBCs, RBC casts, WBC casts) especially if combined with evidence of proteinuria • Decreased kidney function (attributable to SLE) → Perform Kidney Biopsy • Non-ProIiferative LN • Proliferative LN • Non-LN Kidney Disease (5%) #Lupus #Nephritis #diagnosis #algorithm #sle #nephrology #biopsy #indications