Autism Spectrum Disorder
Genetic Testing Explained
Is there a genetic reason?
A simple test. More answers. Less uncertainty.
1. Benefits of Whole Genome Sequencing for Autism Spectrum Disorder (ASD)
If your child has been diagnosed with autism spectrum disorder, or you’re exploring answers
Comprehensive genetic testing, called whole genome sequencing (WGS), looks at your child’s entire DNA. The test may help find the reason behind your child’s autism, giving you a clearer diagnosis and better understanding of the condition.
Depending on what the test finds, it may also help guide treatment. And even if there’s no specific treatment, the results may help predict how the condition could change over time, guide care and support future family planning decisions.
2. Could a more complete genetic test help explain your child’s symptoms?
Could there be a genetic reason?
Whole Genome Sequencing (WGS) is one of the most advanced and complete types of genetic testing available today. Unlike older tests that only look at a part of the DNA, WGS examines all of your child’s genes, plus the surrounding areas of DNA that help control how those genes are turned on and off. This gives us a much better chance of finding a clear explanation.
Why Find All Types of Genetic Changes?
WGS looks for all types of genetic changes, not just the ones most commonly tested. It may detect tiny “spelling mistakes” in genes, missing or extra pieces of DNA. These different types of changes can all play a role in autism and related co-occurring conditions such as
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Trouble understanding or using language (Language delay)
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Late talking or trouble saying words clearly (Speech delay)
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Slower to reach milestones (Developmental delay)
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Unusual movement or shaking that keep coming back (Seizures)
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Learning difficulties or slower learning (Intellectual disability)
By capturing this full range, WGS may help ensure that no important detail is missed.
Higher Chance of Finding Answers
Because it’s thorough, WGS may find answers when other tests do not, especially in children who have additional features like delayed speech, learning differences, seizures, or developmental issues. For many families, it may offer clarity, guidance, and a way forward when other paths have come up short.
3. What if no one else in the family has autism, could it still be genetic?
Yes. Sometimes a change in a child’s genes happens for the first time and isn’t inherited from either parent. These are called de novo mutations, and happen fairly often in children with ASD. Finding one of these new changes can help explain the condition, because new mutations are more likely to be the kind that cause health problems (pathogenic).
4. Can It Happen Again? WGS Helps You Understand.
Sometimes a genetic change that causes ASD is inherited from a parent, and sometimes it happens for the first time in the child - what we call a de novo (new) mutation.
Whole Genome Sequencing can tell the difference. Knowing whether the change is inherited or new helps you understand the chances of it happening again in future pregnancies, which can be incredibly important for family planning and peace of mind.
5. Is the ASD genetic test covered by insurance?
Insurance coverage for Galatea’s genetic test may be available, depending on your individual plan and medical necessity. Please contact us to learn more about coverage options and prior authorization support.
Nova works with Galatea Bio, a certified clinical laboratory, to bring you comprehensive testing you can trust.
