23 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Complex Formation - Complement ... TerrierBen #Hypocomplementemic
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... Vasculitis: • Fevers ... against MPO • Complement ... (Low levels mixed
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low ... Complement: Post-strep ... Idiopathic • Normal Complement ... differential #diagnosis #algorithm
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
anti-GBM) 10%: - Low ... Complement Levels ... Vasculitis - Normal Complement ... other hemorrhagic fevers
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Fevers ... and branches • Fever ... Coronary arteries • Fever ... Elevated AST ALT • Hypocomplementemia ... Vasculitis) • Hypocomplementemic
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Constitutional domain: Fever ... anticoagulant • Complement ... proteins domain: Low ... C3 or low C4, Low ... C3 and low C4
IDSA Algorithm for the Initial Management of Fever and Neutropenia

LOW RISK
 • Antidpated neutropenia < 7
IDSA Algorithm for ... Management of Fever ... Neutropenia LOW ... #neutropenic #fever ... #IDSA #Algorithm
Systolic Murmurs - Differential Diagnosis Algorithm
Benign / Flow / Hyperdynamic:
 • Pregnancy
 • Fever
 • Anemia
Supravalvular
Differential Diagnosis Algorithm ... Benign / Flow ... Pregnancy • Fever ... • Rheumatic Fever ... Differential #Diagnosis #Algorithm
“Step by Step” – the new kid on the block – aims to risk stratify this
components of the algorithm ... be considered “low ... an infant with fever ... Infant #StepByStep #Algorithm ... Stratification #Fever