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Acute Kidney Injury (AKI) - Differential Diagnosis Framework

PRE-Renal AKI:
 • Hypovolemia
 • Congestion
 • Medications
 •
Acute Kidney Injury ... • Vascular • Glomerular ... Immune-complex disease ... , Anti-GBM • Tubular ... #Kidney #Injury
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Small vessel vasculitis ... - TTP/HUS • Glomerular ... disease - Post-infectious ... #Kidney #Injury
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
glomerulonephritis) • Anti-GBM ... - Skin, glomeruli ... (anti-C1q Vasculitis ... : glomerular ischemia ... purpura: strong sign
Anti-GIomeruIar Basement Membrane Disease (Goodpasture's Disease)

What is it? A small vessel vasculitis with circulating antibodies directed
Anti-GIomeruIar ... A small vessel vasculitis ... directed against the glomerular ... following: Serum, Kidney ... diagnosis #nephrology #pulmonary
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... musculoskeletal systems • Kidneys ... : Non-glomerular ... (anti-C1q Vasculitis ... (anti-C1q Vasculitis
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Autoimmune ANCA vasculitis ... life-threatening diseases ... Inflammatory eye disease ... quantify renal injury ... hypercellular glomeruli
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
muscle, liver, and kidney ... • Pulmonary infarction ... : • Early acute ... hepatitis • Acute ... tumor burden) Vasculitis
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... Presentation: Injury ... • Bilateral signs ... - Sjogren - Vasculitis ... AntiCRMP IgG, Anti-Hu