Answer 4 Poststreptococcal glomerulonephritis. Poststreptococcal glomerulonephritis can follow an episode of pharyngitis and presents with hematuria, edema, and hypertension. Patients with this glomerulonephritis have low serum complement levels. Renal biopsy would show deposits of IgG and C3 in the glomeruli. Patients with IgA nephropathy have normal complement levels. Signs suggestive of Henoch-Schönlein purpura—lower extremity rash, joint pain, and abdominal pain—are not present. A family history of renal failure and deafness is not present to suggest a diagnosis of Alport’s syndrome. Click here to return to the questions

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