If you could only perform one test, which would it be?
Not the highest yield test here, given this patient’s evaluation thus far. Pick again!
Complement levels are usually most helpful in patients with suspected nephritic syndromes. Though this patient has hematuria, there are other clues that suggest an alternative diagnosis.
Anti-nuclear antibodies (ANA)
Not the highest yield test in this patient. Let’s look for a more informative test!
Not so fast! We might get into trouble if we stick a needle in this patient’s kidney. Try again!
Excellent! Here it is (both kidneys appear similar) – what do you see?
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