34 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

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

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

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
ANCA-positive vasculitis ... ANCA-negative vasculitis ... IgA-associated vasculitis ... Disease-specific testing ... differential #diagnosis #nephrology
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
Recommended initial testing ... or alternative complement ... for ANCA-related vasculitis ... #glomerular #testing ... nephrotic #nephritic #nephrology
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Differential Diagnosis Algorithm ... Multiplex: • Vasculitis ... Weakness #Sensory #Neurology ... Differential #Diagnosis #Algorithm
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Differential Diagnosis Algorithm ... present on repeat testing ... including overnight testing ... #Proteinuria #Nephrology ... Differential #Diagnosis #Algorithm
Algorithm for selection of the young potential living kidney donor candidate. ∗APOL1 genetic testing is recommended
Algorithm for selection ... ∗APOL1 genetic testing ... #Diagnosis #Nephrology ... Criteria #Evaluation #Algorithm
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... mimics, repeat testing ... → Refer to Nephrology ... cystoscopy • Refer to Nephrology ... Hematuria #Diagnosis #Algorithm
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Differential Diagnosis Algorithm ... malformation, Aneurysm, Vasculitis ... Differential #Diagnosis #Algorithm ... #Causes #neurology