12 results
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Pre-Renal:
 • Hypovolemia, Cardiorenal, Distributive Shock, HRS, Hypercalcemia, Renal
Acute Kidney Injury ... Abdominal Compartment Syndrome ... Emboli, Thrombosis, Vasculitis ... GN: ANCA, Anti-GBM ... #nephrology #causes
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... • Limited to Kidney ... Glomerulonephritis #Vasculitis ... #differential #diagnosis ... #algorithm #rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Anti-LKM (liver kidney ... disease c-ANCA - Vasculitis ... Celiac disease Anti-GBM ... Associations #diseases #diagnosis ... #table #rheumatology
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Small vessel vasculitis ... tubular necrosis (causes ... : sepsis, meds, ... Classification #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... Polyarteritis Nodosa: - Kidneys ... mucositis - Rash ... Kidneys -> glomerulonephritis ... #rheumatology #
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... and Differential Diagnosis ... osmolarity If cause ... Glomerulonephritis / Vasculits ... ANCA, ANA, Anti-GBM
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... • Goodpasture syndrome ... #dermatology #rash ... #diagnosis #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
• Sjögren syndrome ... ANCA-Associated Vasculitis ... + 90% • Anti-GBM ... Antineutrophil #antibodies #diagnosis ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... musculoskeletal systems • Kidneys ... , mucositis • Rash ... tract, and often causes ... #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Differential Diagnosis ... Non-autoimmune rheumatologic ... C4) • ds-DNA: Kidney ... induced SLE • Kidney ... #Rheumatology