16 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Membranoproliferative glomerulonephritis ... Post/pauci immune glomerulonephritis ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... - Skin, glomeruli ... Urticaria and hypocomplementemia ... : - Kidneys: glomerular ... against MPO • Complement
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... staining): • Low Complement ... Idiopathic • Normal Complement ... #Vasculitis #differential ... #diagnosis #algorithm
Causes of Hematuria - Glomerular vs Non-glomerular

== Glomerular ==
- Glomerulonephritis 
- Thin basement membrane disease 

==
Causes of Hematuria ... - Glomerular vs ... == - Glomerulonephritis ... #Algorithm #Diagnosis ... Nonglomerular #Causes
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
Membranoproliferative Glomerulonephritis ... dysmorphic RBC, RBC casts ... formation along glomerular ... MGPN • Complement ... Membranoproliferative #Glomerulonephritis
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Causes of Hematuria ... Differential Diagnosis Algorithm ... • Calculi Glomerular ... Differential #Diagnosis #Algorithm ... #Causes
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
• Kidneys: Non-glomerular ... (Glomerulonephritis ... tract, and often causes ... Elevated AST ALT • Hypocomplementemia ... ) • Hypocomplementemic
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
- Small vessel vasculitis ... - TTP/HUS • Glomerular ... Post-infectious glomerulonephritis ... tubular necrosis (causes
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
evaluated for glomerular ... or alternative complement ... infections are common causes ... for ANCA-related vasculitis ... workup #diagnosis #glomerulonephritis
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Algorithm - Approach ... membrane; GN = glomerulonephritis ... membranoproliferative glomerulonephritis ... Nephrocalcinosis causes ... #Algorithm #differential