33 results
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... rapidly progressive glomerulonephritis ... ANCA Associated Vasculitis ... anti-GBM) 10%: - Low Complement ... - Normal Complement
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

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

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
pulmonary and renal ... - Necrotizing glomerulonephritis ... • Glomerulonephritis ... against MPO • Complement ... • Urinalysis (Renal
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
Membranoproliferative Glomerulonephritis ... staining (lg + complement ... MGPN • Complement ... Membranoproliferative #Glomerulonephritis ... nephrology #diagnosis #renal
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Membranoproliferative glomerulonephritis ... Post/pauci immune glomerulonephritis ... Erythematosus (total 50, renal ... Hypocomplementemia #Low #Complement
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
protein/Cr - Renal ... - 45% - Pre-renal ... related) - Glomerulonephritis ... or vasculitis — ... Nephrology #Diagnosis #Algorithm
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
) - Prerenal, Renal ... Postrenal PRE-RENAL ... Glomerulonephritis ... Small-vessel vasculitis ... Infection POST-RENAL
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
ANCA-Associated Vasculitis ... , small-vessel vasculitis ... Complement levels ... polyangiitis without renal ... polyangiitis - MPO>PR3 Renal-limited
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal ... alveolar hemorrhage + Glomerulonephritis ... ANCA-positive vasculitis ... ANCA-negative vasculitis ... IgA-associated vasculitis
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Injury - AKI Workup Algorithm ... urinary sediment, renal ... and signs • Glomerulonephritis ... / Vasculits: ANCA ... #AKI #Workup #Algorithm