3-year-old Boy in Pediatrics — 3yo Child | Pediatric Nephrology | SMLE Q#12421
SMLE Question #12421
Pediatrics
Pediatric Nephrology
Objective: OBJ-436
Last updated: February 2026
A 3-year-old boy has 1 week of periorbital puffiness, worst in the morning, after a self-limited flu-like illness 2 weeks ago. Examination shows periorbital edema without lower-limb edema, ascites, or organomegaly. Which of the following tests is most useful to confirm the diagnosis?
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