7 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... S - Systemic Lupus ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... anticoagulant • Complement ... C3 or low C4, Low ... #EULARACR #Classification ... #Criteria #SLE
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
thiazidic, PPI, ACE ... in >90% - Low ... complement - Rare ... 60-80% - Low ... complement - 50
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... (Low levels mixed ... vasculitis, and SLE
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... factor level • Low ... serum C4 complement ... (e.g. systemic lupus ... diagnosis #types #classification
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
is rare in DIL, SCLE-DIL ... thiazidic, PPI, ACE ... in >90% - Low ... complement - Rare ... Discontinuation of causal
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Causes of Hyperkalemia ... diseases: syßtemic lupus ... Drug-associated: heparin, low-molecular-weight ... High #Potassium #Classification ... #Causes