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What test can confirm a diagnosis of autism?

There is currently no medical test that can confirm a diagnosis of autism. A diagnosis of autism is based on observed behavior, developmental history, and autism specific instruments when needed (ADOS, ADI). The ADOS and ADI-R can be used in conjunction with clinical judgment to confirm a diagnosis of autism.

Although autism is considered a neurological disability, no specific medical test or procedure can confirm a diagnosis of autism. To gather more information that will accurately profile an individual’s strengths and needs, a variety of tests, assessments, and evaluations should be administered.

Source: Center for Autism & Related Disabilities (CARD)

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.