22 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Urticarial Vasculitis ... Complex Formation - Complement ... TerrierBen #Hypocomplementemic ... Pathophysiology #Rheumatology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Post/pauci immune glomerulonephritis ... @AnnKumfer #Hypocomplementemia ... #Low #Complement ... #differential #hematology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... #Vasculitis #differential ... #diagnosis #algorithm ... #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... , Glomerulonephritis ... against MPO • Complement ... differential #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
, pauci-immune glomerulonephritis ... (Glomerulonephritis ... Elevated AST ALT • Hypocomplementemia ... ) • Hypocomplementemic ... Differential #Diagnosis #Rheumatology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Algorithm INDICATIONS ... evaluation or workup ... 1,500 cells/µL Workup ... Eosinophil #Disorders #Algorithm ... Differential #diagnosis #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Differential Diagnosis Algorithm ... cardiac valve, vasculitis ... Differential #Diagnosis #Algorithm ... #workup #hematology ... #testing
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Differential Diagnosis Algorithm ... for workup, including ... Rheumatologic, Vasculitides ... Differential #Diagnosis #Algorithm ... #hematology
Complement Deficiency Testing Algorithm
 • Normal CH50 and AH50 AND High suspicion for complement deficiency
 •
Complement Deficiency ... Testing Algorithm ... suspicion for complement ... #Deficiency #Testing ... #Algorithm #hematology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI Workup ... Algorithm and Differential ... and signs • Glomerulonephritis ... / Vasculits: ANCA ... #Injury #AKI #Workup