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Lead exposure — USMLE Step 3 MCQ

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ModeratePediatrics (well-child, chronic management)Lead exposureUSMLE Step 3

A 2-year-old girl lives in an older rental home with peeling paint. She has no symptoms and normal growth. Her family recently moved from another state and no prior lead testing is documented. Which of the following is the most appropriate screening recommendation?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Obtain blood lead level

Children with risk factors such as older housing should have blood lead testing; symptoms are often absent at lower exposure levels.

Reference: CDC Childhood Lead Poisoning Prevention Guidance; AAP Periodicity Schedule