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Autism screening — USMLE Step 3 MCQ

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HardPediatrics (well-child, chronic management)Autism screeningUSMLE Step 3

A healthy 18-month-old uses three words, walks independently, and has no parental concern. Which scheduled assessment is best?

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Correct answer: C — Complete standardized developmental and autism-specific screening at this visit

At 18 months, both standardized developmental screening and autism-specific screening are indicated; surveillance continues at every visit. Normal early milestones do not eliminate the scheduled assessment.

Reference: American Academy of Pediatrics, Developmental Surveillance and Screening: https://www.aap.org/en/patient-care/developmental-surveillance-and-screening-patient-care/