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DNA Labs India

PIEZO2 Gene Marden-Walker syndrome NGS Genetic Test

DNA Labs India | ISO 9001:2015 Certified

PIEZO2 Gene Marden-Walker syndrome NGS Genetic Test

Short Name: PIEZO2 MWS NGS

Also known as: MWS Genetic Test, PIEZO2 Gene Sequencing, Marden-Walker Syndrome NGS Panel

PIEZO2 Gene Marden-Walker syndrome 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 Reports are typically delivered within 3 to 4 weeks after sample receipt.. Free home collection in 300+ cities across India.

NGS Genetic Test🏠 Home Collection

🩺 Medically Reviewed By

Overview

The purpose of this test is to confirm a clinical diagnosis of Marden-Walker syndrome by identifying pathogenic mutations in the PIEZO2 gene. It also aids in carrier testing for family members, prenatal diagnosis in at-risk pregnancies, and genetic counseling. NGS technology ensures high accuracy and comprehensive coverage of the gene.

Test Code
5830
CPT Code
81407
ICD Code
Q87.8
Price
₹20,000
Sample Type
Blood or Extracted DNA or One drop Blood on FTA Card
Result Time
Reports are typically delivered within 3 to 4 weeks after sample receipt.
Fasting Required
No
Method
Next Generation Sequencing (NGS)
Step 1

Sample Collection

No special preparation required. A genetic counseling session is recommended before the test to draw a pedigree chart and discuss implications.

Method: Venipuncture or FTA card spot

Step 2

Laboratory Analysis

Blood sample is collected by a trained phlebotomist using sterile technique. For FTA card, a drop of blood is placed on the card and allowed to dry.

Step 3

Report Delivery

No restrictions. The sample is transported to the laboratory at ambient temperature.

Timeline: Reports are typically delivered within 3 to 4 weeks after sample receipt.

Patient Instructions

1
Before the Test:No fasting required. However, a genetic counseling session is mandatory before the test to understand the implications and provide informed consent.
2
During the Test:The test involves a simple blood draw or FTA card sample collection. No pain or discomfort beyond the needle prick.
3
After the Test:You can resume normal activities immediately. Results will be available in 3-4 weeks and will be shared via email/portal.

About This Test

Who Should Get This Test

The purpose of this test is to confirm a clinical diagnosis of Marden-Walker syndrome by identifying pathogenic mutations in the PIEZO2 gene. It also aids in carrier testing for family members, prenatal diagnosis in at-risk pregnancies, and genetic counseling. NGS technology ensures high accuracy and comprehensive coverage of the gene.

How to Prepare

  • Ensure patient identity is verified
  • Use EDTA vacutainer for blood collection
  • For FTA card, apply one drop of blood to each circle
  • Label the sample with patient name and ID
  • Store at room temperature until shipment

Doctor's Notes

Reviewed by — MBBS, MD (Pathology) · Reg. No. 21521

"Genetic testing for Marden-Walker syndrome is crucial for accurate diagnosis and family planning. NGS provides comprehensive analysis of the PIEZO2 gene."

Last medically reviewed: September 3, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Sample Volume2-3 ml blood or 1 drop on FTA card
ContainerEDTA vacutainer or FTA card
Collection MethodVenipuncture or FTA card spot

Sample Stability

Blood in EDTA48 hours
Extracted DNA1 week
FTA card6 months
Sample Rejection Criteria:
  • Hemolyzed or clotted blood sample
  • Insufficient sample volume
  • Incorrect labeling
  • Sample received after prolonged transit time (>72 hours) without proper storage

Understanding Your Results

The test report will indicate whether any pathogenic or likely pathogenic variants were identified in the PIEZO2 gene. Variants are classified according to ACMG guidelines.
📊

Positive for pathogenic variant

Confirms diagnosis of Marden-Walker syndrome. Genetic counseling recommended.

📊

Negative for pathogenic variant

No mutation found in PIEZO2 gene. Other genetic causes may be considered.

📊

Variant of uncertain significance (VUS)

A variant was found but its clinical significance is unclear. Further testing of family members may be needed.

⚠️ When to Consult a Doctor:

Consult a geneticist or pediatrician if you or your child exhibit symptoms suggestive of Marden-Walker syndrome, such as joint contractures, facial dysmorphism, or developmental delay. Early referral for genetic testing is advised.

Limitations

  • NGS may not detect large deletions/duplications or deep intronic variants
  • Variants in regulatory regions may not be covered
  • Results should be interpreted in the context of clinical findings
  • Negative result does not rule out other genetic causes of similar phenotype

Risks & Considerations

  • Minimal risk of bruising at the blood draw site
  • Psychological impact of genetic results
  • Potential for variants of uncertain significance causing anxiety

Interfering Factors

  • Poor quality DNA sample (degraded or contaminated)
  • Insufficient sample quantity
  • Presence of maternal cell contamination in prenatal samples
  • Rare variants of uncertain significance may require further analysis

Compare With Similar Tests

TestPIEZO2 Gene Marden-Walker syndrome NGS Genetic TestWhole Exome SequencingTargeted PIEZO2 Sanger SequencingChromosomal Microarray
ComparisonPIEZO2 Gene Marden-Walker syndrome NGS Genetic Test

Frequently Asked Questions

What is Marden-Walker syndrome?
Marden-Walker syndrome is a rare genetic disorder characterized by joint contractures, facial dysmorphism, intellectual disability, and sometimes visual and respiratory problems. It is caused by mutations in the PIEZO2 gene.
How is the PIEZO2 gene test performed?
The test uses Next-Generation Sequencing (NGS) technology to analyze the entire PIEZO2 gene for mutations. A blood sample or FTA card sample is collected and sent to the laboratory.
What is the cost of the PIEZO2 gene test in India?
At DNA Labs India, the cost is INR 20,000, which includes home sample collection, genetic counseling, and the clinical report along with raw data files.
Is fasting required before the test?
No, fasting is not required for this genetic test. You can eat and drink normally before sample collection.
How long does it take to get the results?
The turnaround time is typically 3 to 4 weeks from the date of sample receipt at the laboratory.
What sample types are accepted?
We accept blood (2-3 ml in EDTA tube), extracted DNA, or one drop of blood on an FTA card.
Will I receive raw data files?
Yes, DNA Labs India is the only lab that provides raw data files (FASTQ, VCF) along with the clinical report for transparency.
Can this test be done during pregnancy?
Yes, prenatal testing can be performed using appropriate samples (e.g., amniotic fluid or CVS) after genetic counseling. Please discuss with your doctor.
What does a positive result mean?
A positive result indicates the presence of a pathogenic mutation in the PIEZO2 gene, confirming the diagnosis of Marden-Walker syndrome. Genetic counseling is recommended.
What if the result is negative?
A negative result means no pathogenic mutation was found in the PIEZO2 gene. However, other genetic causes may still be considered, and further testing may be advised.
Is home sample collection available?
Yes, we offer free home sample collection for online bookings across major cities in India, including Mumbai, Delhi, Bangalore, Hyderabad, and more.
How do I book this test?
You can book online through our website or call our customer care. After booking, a phlebotomist will visit your home for sample collection.
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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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.

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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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