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DNA Labs India

BRWD3 Gene Mental retardation, X-linked type 93 NGS Genetic Test

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BRWD3 Gene Mental retardation, X-linked type 93 NGS Genetic Test

Short Name: BRWD3 NGS Test

Also known as: BRWD3 gene test, XLMR type 93 genetic test

BRWD3 Gene Mental retardation, X-linked type 93 NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses Next-Generation Sequencing (NGS) on Blood or Extracted DNA or One drop Blood on FTA Card samples. Results in 3 to 4 weeks after sample receipt.. Free home collection in 300+ cities across India.

NGS Genetic TestBoth, more common in malesAll ages, typically diagnosed in childhood🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr SULOCHANA HEMCHANDRA HOLLA

Dr SULOCHANA HEMCHANDRA HOLLA

Consultant Medical Geneticist · Reg: 8532

Last reviewed: September 7, 2026

Overview

The purpose of this test is to diagnose X-linked mental retardation type 93 by detecting mutations in the BRWD3 gene. It aids in confirming clinical suspicion, guiding treatment plans, and providing genetic counseling for families.

Test Code
1701
Price
₹20,000
Sample Type
Blood or Extracted DNA or One drop Blood on FTA Card
Result Time
3 to 4 weeks after sample receipt.
Fasting Required
No
Method
Next-Generation Sequencing (NGS)
Step 1

Sample Collection

No special preparation required. Genetic counseling recommended.

Method: Venipuncture or cheek swab

Step 2

Laboratory Analysis

Blood sample drawn by trained phlebotomist or cheek swab collected.

Step 3

Report Delivery

Sample sent to laboratory for analysis. Results available online.

Timeline: 3 to 4 weeks after sample receipt.

Patient Instructions

1
Before the Test:Genetic counseling to discuss implications and obtain consent.
2
During the Test:Non-invasive sample collection procedure.
3
After the Test:Follow-up consultation to discuss results and next steps.

About This Test

Who Should Get This Test

The purpose of this test is to diagnose X-linked mental retardation type 93 by detecting mutations in the BRWD3 gene. It aids in confirming clinical suspicion, guiding treatment plans, and providing genetic counseling for families.

How to Prepare

  • Ensure sample is properly labeled
  • Store blood in EDTA tube at room temperature

Doctor's Notes

Reviewed by — MBBS, MD (Medical Genetics) · Reg. No. 8532

"Genetic testing is crucial for early diagnosis and management of X-linked conditions. Referral for genetic counseling is recommended for affected families."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Sample Volume3-5 mL blood or equivalent
ContainerEDTA tube or FTA card
Collection MethodVenipuncture or cheek swab

Sample Stability

Blood sample stable for 48 hours at room temperature
Extracted DNA stable for longer periods
Sample Rejection Criteria:
  • Insufficient sample volume
  • Hemolyzed or contaminated sample

Understanding Your Results

Results indicate the presence or absence of pathogenic mutations in the BRWD3 gene.
Negative result: No pathogenic variant found; condition unlikely but not ruled out if clinical suspicion remains.
Positive result: Pathogenic variant detected; confirms diagnosis of X-linked mental retardation type 93.
Variant of uncertain significance (VUS): Requires further evaluation and genetic counseling.
⚠️ When to Consult a Doctor:

If the test result is positive or if there is clinical suspicion despite a negative result, consult a geneticist or neurologist for further evaluation and management.

Limitations

  • ⚠Does not detect all genetic causes of mental retardation
  • ⚠May not identify variants of uncertain significance

Risks & Considerations

  • ●Minimal risk from blood draw
  • ●Emotional impact of test results

Interfering Factors

  • ●Contaminated DNA sample
  • ●Recent blood transfusion may affect results

Compare With Similar Tests

TestBRWD3 Gene Mental retardation, X-linked type 93 NGS Genetic TestFMR1 Gene Test for Fragile X SyndromeWhole Exome Sequencing
ComparisonBRWD3 Gene Mental retardation, X-linked type 93 NGS Genetic Test

Frequently Asked Questions

What is the BRWD3 Gene NGS Genetic Test?
It is a genetic test that uses next-generation sequencing to detect mutations in the BRWD3 gene, which cause X-linked mental retardation type 93.
Who should consider this test?
Individuals with symptoms of intellectual disability, delayed development, or a family history of X-linked mental retardation.
How is the test performed?
A blood sample or cheek swab is collected and analyzed using NGS technology to identify gene mutations.
What is the cost of the test?
The test costs INR 20,000, with free home collection available in India.
How long does it take to get results?
Results are typically available within 3 to 4 weeks after sample collection.
Is home sample collection available?
Yes, free home sample collection is offered for online bookings across many cities in India.
What are the symptoms of X-linked mental retardation type 93?
Symptoms include delayed speech, learning difficulties, behavioral problems, motor delays, and intellectual disability.
Can this test diagnose all forms of mental retardation?
No, it specifically targets mutations in the BRWD3 gene for type 93. Other genetic tests may be needed for other causes.
Is genetic counseling recommended?
Yes, genetic counseling before and after testing is advised to understand the implications and support decision-making.
What if the test result is positive?
A positive result confirms the diagnosis, and further management plans can be developed with healthcare providers.
Is the test available for females?
Yes, but X-linked conditions primarily affect males; females can be carriers and may benefit from testing.
What is the accuracy of the NGS test?
NGS is highly accurate for detecting gene mutations, but interpretation should be done by qualified professionals.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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For Hospitals & Clinics

Reference Laboratory Services

We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

LIMS Integration

Your Data Privacy

Your medical data is protected under Indian law.

✓ Stored in India: All patient records are stored on servers located in India. No data is transferred outside the country.

✓ DPDP Act Compliant: Under the Digital Personal Data Protection Act 2023, you can request deletion of your records at any time by contacting support.

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