A 4-Year-Old Boy Who Has Been Deaf Since Birth and Has

A 4-year-old boy who has been deaf since birth and has bilateral cataracts has been brought to the emergency department by his mother because she noticed blood in the toilet after he last voided. Urinalysis confirms heavy microscopic hematuria as well as proteinuria. What will the health care team's initial differential diagnosis most likely be?

A) Alport syndrome
B) Systemic lupus erythematosus glomerulonephritis
C) Henoch-Schönlein purpura nephritis
D) Immunoglobulin A nephropathy

Correct Answer:

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