7366 results
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
40, F:M 9:1 • Clinical ... - pANCA anti-MPO
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
to 1:1 F:M • Clinical ... - pANCA anti-MPO ... 40, F:M 9:1 • Clinical ... - pANCA anti-MPO
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
associated with MPO ... polyangiitis - MPO ... polyangiitis - MPO ... Renal-limited - MPO ... #CANCA #PANCA #MPO
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
C-ANCA): GPA >>> MPA ... > eGPA • MPO-ANCA ... P-ANCA): eGPA, MPA
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
polyangiitis - MPO ... PR3 (80-90%) > MPO ... involvement - PR3>MPO ... Churg-Strauss) - MPO ... Anti-GBM disease - MPO
ANCA Associated Vasculitis (AAV) - Auto-antibodies and Differential Diagnosis

MPA → usually p-ANCA
GPA → usually c-ANCA
EGPA →
Differential Diagnosis MPA ... 50% P-ANCA (MPO
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
myeloperoxidase (MPO-ANCA ... present in >90%, MPO ... Granulomas - MPO ... (10-40% ANCA +MPO ... 100 % Commonly MPO-ANCA
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
a.k.a EPO. ... waiting for the EPO ... is ramping up EPO ... vs exogenous, EPO ... tumors produce EPO
Loop diuretic PO --> IV conversions 

Furosemide 40 mg PO = Furosemide 20 mg IV =
Loop diuretic PO ... Furosemide 40 mg PO ... Torsemide 20 mg PO ... Bumetanide 1 mg PO ... Recommended Text: Clinical
Loop diuretic conversion - Equivalent Doses
Furosemide (Lasix) 40 mg PO = Furosemide 20 mg IV =
(Lasix) 40 mg PO ... Torsemide 20 mg PO ... Bumetanide (Bumex) 1 mg PO ... Recommended Text: Clinical