Answer 3 IgA nephropathy. IgA nephropathy is associated with upper respiratory tract infection. It is the most common form of glomerulonephritis. Henoch-Schönlein purpura shares similar pathophysiology with IgA nephropathy but has a purpuric palpable rash affecting the lower extremities. Abdominal pain and joint pain are also present with Henoch-Schönlein purpura. Poststreptococcal glomerulonephritis is generally associated with low serum complement levels. A family history of renal failure is not present to suggest Alport’s syndrome. Click here to return to the questions

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