15 results
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Small vessel vasculitis ... glomerulonephritis ... necrosis (causes ... #diagnosis #nephrology
Rapidly Progressive Glomerulonephritis (RPGN) 
 - Loss of kidney function over a short period of tirne
) - Loss of kidney ... disease (hematuria ... nephritis, cryoglobulinemia ... #Differential # ... Diagnosis #Nephrology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... , glomeruli, and ... Kidneys -> glomerulonephritis ... differential #diagnosis ... #rheumatology #classification
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... Post-strep GN, Lupus ... Nephritis, Cryoglobulinemia ... • Limited to Kidney ... #Vasculitis #differential
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
alveolar hemorrhage + Glomerulonephritis ... polyangiitis, Microscopic ... , Cryoglobulinemia ... Complex: Systemic lupus ... diagnosis #nephrology
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Causes of Acute ... Acute Kidney Injury ... • Hepatorenal syndromes ... polyangiitis /microscopic ... Interstitial Nephritis
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
are seen in acute ... broad - Advanced kidney ... syndrome ("Maltese ... #Differential # ... Microscopy #Diagnosis
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
Acute Kidney Injury ... inhibitors, hepatorenal syndrome ... Post-infectious GN, Lupus ... Interstitial Nephritis ... Diagnosis #nephrology
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
Causes of Acute ... Small-vessel vasculitis ... • Inflammatory disease ... #Acute #Kidney ... #Nephrology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Skin ulcers - Glomerulonephritis ... • Autoimmune diseases ... - GPA, EGPA, microscopic ... (e.g. systemic lupus ... #types #classification