Written by Dr. Ananya Sharma | Medically Reviewed by Dr. Rajesh Kumar, Medical Geneticist | Last Updated:
At a Glance: Autism DNA Test
- Sample Required: Blood or Saliva (Buccal Swab)
- Fasting Rules: No fasting required
- Turnaround Time (TAT): 2–3 weeks
- Base Cost: ₹20,000 (varies by gene panel)
What is Autism Spectrum Disorder (ASD)?
Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by challenges in social interaction, communication, and repetitive or restricted behaviors. The term "spectrum" reflects the wide variability in symptom severity and functional impact. While some individuals require significant support, others live independently and excel in specific areas.
Historically, conditions like Asperger’s syndrome and childhood disintegrative disorder were considered separate; today, they are all classified under ASD. Early signs often appear by age 2, including reduced eye contact, delayed speech, or loss of previously acquired skills.
Genetic Basis of Autism: Why DNA Testing Matters
Autism DNA test is not a single diagnostic tool but a panel of genetic tests that identify pathogenic variants associated with ASD. Research indicates that 10–20% of ASD cases have a known genetic cause, including copy number variations (CNVs), single-gene mutations, and chromosomal abnormalities. Identifying these variants can:
- Provide a molecular diagnosis and end the diagnostic odyssey.
- Inform recurrence risk for family planning.
- Guide personalized interventions and surveillance for co-morbid conditions.
Modern testing leverages Next-Generation Sequencing (NGS) and Whole Exome Sequencing (WES) to analyze multiple genes simultaneously, offering higher sensitivity than older methods. For a comprehensive evaluation, chromosomal microarray (CMA) is often recommended as a first-tier test, followed by targeted gene panels or WES.
Types of Genetic Tests for Autism
Autism spectrum disorder genetic testing typically involves one or more of the following:
| Test Type | Methodology | What It Detects | Turnaround Time |
|---|---|---|---|
| Chromosomal Microarray (CMA) | Array-based comparative genomic hybridization | Copy number variations (deletions/duplications) | 2–3 weeks |
| Targeted Gene Panel (e.g., Autism Panel) | NGS (Next-Generation Sequencing) | Mutations in 50–100 genes linked to ASD | 2–3 weeks |
| Whole Exome Sequencing (WES) | NGS of all coding regions | Variants in any gene, including novel ones | 4–6 weeks |
Who Should Consider an Autism DNA Test?
Genetic testing is recommended for individuals with a confirmed ASD diagnosis, especially when there are additional features like intellectual disability, dysmorphic features, or a family history of ASD. It is also valuable for parents who have one child with ASD and are planning another pregnancy, as it can clarify recurrence risk.
Genetic tests are not diagnostic for autism per se but can identify an underlying genetic cause, which is crucial for medical management and family counseling.
Test Process and Sample Collection
At DNA Labs India, we follow a streamlined process:
- Consultation: A genetic counselor reviews the clinical history and selects the appropriate test.
- Sample Collection: A simple blood draw or buccal swab is performed at our collection center or at your home.
- Laboratory Analysis: The sample is processed in our ISO 9001 certified laboratory using advanced NGS platforms.
- Report & Counseling: Results are delivered with a detailed interpretation and post-test genetic counseling.
Cost of Autism DNA Test in India
The cost of an Autism DNA test in India starts from ₹20,000 and varies based on the gene panel selected, the number of genes analyzed, and the methodology (targeted panel vs. WES). Below is an indicative pricing structure:
| Test | Genes Analyzed | Cost (₹) | TAT |
|---|---|---|---|
| Autism Targeted Panel | 50–100 genes | ₹20,000 – ₹30,000 | 2–3 weeks |
| Whole Exome Sequencing (WES) | ~20,000 genes | ₹40,000 – ₹60,000 | 4–6 weeks |
Note: Prices are indicative and may change. Contact us for the latest pricing and package offers.
How to Book an Autism DNA Test at DNA Labs India
Booking is simple and convenient. Visit our website www.dnalabsindia.com to schedule a test. We offer home sample collection in over 180 cities across India. Our trained phlebotomists ensure a safe and comfortable experience.
For any queries or to book directly, call us at:
- New Delhi: (011) 40849842
- Mumbai: (022) 48937160
- Kolkata: (033) 40836441
- Chennai: (044) 48137110
- Bangalore: (080) 45684079
- Hyderabad: (040) 49171772
- Ahmedabad: (079) 49107674