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ACVR2B Gene Heterotaxy, visceral type 4 NGS Genetic Test

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ACVR2B Gene Heterotaxy, visceral type 4 NGS Genetic Test

Short Name: ACVR2B Heterotaxy NGS Test

Also known as: Heterotaxy Type 4 Genetic Test, ACVR2B Mutation Analysis, Visceral Heterotaxy Genetic Test

ACVR2B Gene Heterotaxy, visceral type 4 NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses NGS, Next Generation Sequencing on Blood samples. Results in 3 to 4 Weeks. Free home collection in 300+ cities across India.

PediatricsPediatric🏠 Home Collection

🩺 Medically Reviewed By

Overview

To diagnose Heterotaxy, visceral type 4 by identifying pathogenic mutations in the ACVR2B gene using NGS technology, aiding in clinical management and genetic counseling.

Test Code
5763
Price
₹20,000
Sample Type
Blood
Result Time
3 to 4 Weeks
Fasting Required
No
Method
NGS, Next Generation Sequencing
Step 1

Sample Collection

No special preparation is required. Provide clinical history and undergo genetic counseling as recommended.

Method: Venipuncture

Step 2

Laboratory Analysis

A blood sample will be drawn from a vein in the arm using standard venipuncture techniques.

Step 3

Report Delivery

Apply pressure to the puncture site to stop bleeding. Resume normal activities unless advised otherwise.

Timeline: 3 to 4 Weeks

Patient Instructions

1
Before the Test:Undergo genetic counseling to understand the test implications and provide informed consent. Share detailed clinical and family history.
2
During the Test:The test involves a blood draw, which is a quick procedure with minimal discomfort. The sample is then processed in the lab using NGS technology.
3
After the Test:Wait for the results, which take 3-4 weeks. Follow up with your healthcare provider to discuss findings and next steps.

About This Test

Who Should Get This Test

To diagnose Heterotaxy, visceral type 4 by identifying pathogenic mutations in the ACVR2B gene using NGS technology, aiding in clinical management and genetic counseling.

How to Prepare

  • Ensure proper labeling of the sample with patient details
  • Transport the sample at ambient room temperature to the lab
  • Follow instructions provided by the collection kit if home collection is used

Doctor's Notes

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

"Genetic testing is crucial for early diagnosis and management of rare disorders like Heterotaxy, enabling personalized care and family planning."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood
Sample Volume5-10 mL
ContainerEDTA Vacutainer
Collection MethodVenipuncture

Sample Stability

Blood samples are stable for 48 hours at room temperature
For longer storage, refrigerate at 2-8°C
Sample Rejection Criteria:
  • Hemolyzed or clotted blood samples
  • Insufficient sample volume
  • Improperly labeled or contaminated samples

Understanding Your Results

Results from the ACVR2B Gene Heterotaxy Test indicate the presence or absence of mutations in the ACVR2B gene. A positive result confirms a genetic basis for Heterotaxy, visceral type 4, while a negative result suggests no pathogenic variants were detected, though other genetic factors may be involved.
📊

Pathogenic mutation detected in ACVR2B gene, confirming diagnosis of Heterotaxy, visceral type 4. Genetic counseling recommended for management and family planning.

Result type: Positive

📊

No pathogenic variants detected. Clinical correlation and further testing may be needed if symptoms persist.

Result type: Negative

📊

A genetic variant was found but its clinical significance is unknown. Repeat testing or family studies may be advised.

Result type: Variant of Uncertain Significance (VUS)

⚠️ When to Consult a Doctor:

Consult a doctor if you experience symptoms such as abnormal heart rhythms, breathing difficulties, or organ abnormalities, or if you have a family history of heterotaxy. After receiving test results, seek guidance from a genetic counselor or specialist for appropriate management.

Limitations

  • May not detect all possible mutations in the ACVR2B gene
  • Results require interpretation by a genetic counselor or specialist
  • Does not rule out other genetic causes of heterotaxy

Risks & Considerations

  • Minimal risks from blood draw, such as slight pain, bruising, or infection at the puncture site
  • Psychological impact of genetic results, addressed through counseling

Interfering Factors

  • Sample contamination or degradation
  • Insufficient DNA quantity or quality
  • Recent blood transfusions affecting DNA analysis

Compare With Similar Tests

TestACVR2B Gene Heterotaxy, visceral type 4 NGS Genetic TestZIC3 Gene Heterotaxy TestNODAL Gene Heterotaxy TestCFC1 Gene Heterotaxy TestDNAH5 Gene Primary Ciliary Dyskinesia Test
ComparisonACVR2B Gene Heterotaxy, visceral type 4 NGS Genetic TestTargets mutations in the ZIC3 gene, another cause of heterotaxy, but focuses on different genetic pathways.Analyzes the NODAL gene for mutations associated with laterality defects, complementary to ACVR2B testing.Examines the CFC1 gene, which is linked to heterotaxy and congenital heart defects.Tests for mutations causing primary ciliary dyskinesia, which can present with similar symptoms but different genetic basis.

Frequently Asked Questions

What is Heterotaxy, visceral type 4?
Heterotaxy, visceral type 4 is a rare genetic disorder characterized by abnormal positioning and arrangement of internal organs, particularly in the chest and abdomen, often leading to heart defects and other organ abnormalities.
What causes Heterotaxy type 4?
It is caused by mutations in the ACVR2B gene, which plays a role in organ development during embryonic growth.
How is the ACVR2B Gene Test performed?
The test uses Next Generation Sequencing (NGS) technology to analyze DNA from a blood sample for mutations in the ACVR2B gene.
What is the cost of the ACVR2B Gene Heterotaxy Test?
The test costs INR 20,000 at DNA Labs India, which includes analysis, report, and genetic counseling.
Is home sample collection available for this test?
Yes, DNA Labs India offers free home sample collection across many cities in India for this test.
How long does it take to get the test results?
Results are typically available within 3 to 4 weeks after sample collection.
What do the test results mean?
A positive result indicates a mutation in the ACVR2B gene, confirming Heterotaxy type 4. A negative result means no pathogenic variants were detected, but further evaluation may be needed.
Is genetic counseling required before or after the test?
Yes, genetic counseling is recommended to understand the test implications, interpret results, and discuss management options.
Are there any risks associated with the test?
The test involves a standard blood draw with minimal risks like bruising or infection. Psychological support is available for result-related concerns.
Can this test be done during pregnancy?
Prenatal testing may be possible through methods like amniocentesis, but consult a healthcare provider for specific guidance.
What other tests are related to Heterotaxy diagnosis?
Related tests include ZIC3, NODAL, and CFC1 gene tests, as well as comprehensive heterotaxy panels and imaging studies.
How accurate is the NGS technology used in this test?
NGS is highly accurate for detecting genetic mutations, with a sensitivity and specificity exceeding 99% for known variants, making it a reliable diagnostic tool.
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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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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