11 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... A - Atypical HUS ... @AnnKumfer #Hypocomplementemia ... #Low #Complement ... Mnemonic #diagnosis #differential
Effect of Selected Diseases on Complement Levels - C3, C4
 • SLE C3 ↓ C4 ↓↓
Levels - C3, C4 ... • SLE C3 ↓ C4 ... C3 ↓ C4 → • HUS ... #Levels #C3 #C4 ... #differential #
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Syndromes and Mimics - Differential ... Levels: SLE, Cryoglobulinemic ... Levels: Scleroderma ... hypertension - MAHA: HUS ... , atypical HUS,
Atypical HUS - Hemolytic Uremic Syndrome
Unlike typical HUS, which is shigatoxin mediated, aHUS is not typically
autoimmune like SLE ... It is complement ... still present with anemia ... need the ADAMTS13 level ... with Eculizumab (complement
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
- Differential ... Diagnosis Algorithm ... (TTP, HUS, DIC, ... Recent travel/Fevers ... #Differential #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Thrombocytopenia - Differential ... Diagnosis Algorithm ... Megakaryopoiesis • Aplastic Anemia ... Autoimmune • ITP • SLE ... Syndrome • TTP/HUS
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Diagnosis Algorithm ... perfringens - Complement-Mediated ... immune-complex hemolytic anemia ... MAHA (TTP, DIC, HUS ... #Diagnosis #Algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... (Low levels mixed ... vasculitis, and SLE
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential ... Diagnosis Algorithm ... genotypes): SS, SC, SE ... DIC, TTP, HELLP, HUS
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... diseases, such as SLE ... Vasculitis: • Fevers ... Elevated AST ALT • Hypocomplementemia ... Vasculitis) • Hypocomplementemic