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DNA Labs India

VNTR Chimerism Study [POST-BMT] Test

DNA Labs India | ISO 9001:2015 Certified

VNTR Chimerism Study [POST-BMT] Test

Also known as: VNTR Analysis, Chimerism Monitoring Test

VNTR Chimerism Study [POST-BMT] Test test available at DNA Labs India for ₹7,500. Uses End Point PCR on Peripheral blood of recipient and donor samples. Results in 3-4 days. Free home collection in 300+ cities across India.

Monitoring🏠 Home Collection

🩺 Medically Reviewed By

Overview

To diagnose and monitor chimerism after bone marrow transplant, ensuring graft success and detecting complications early.

Test Code
3231
Price
₹7,500
Sample Type
Peripheral blood of recipient and donor
Result Time
3-4 days
Fasting Required
No
Method
End Point PCR
Step 1

Sample Collection

VNTR Chimerism Study [POST-BMT] can be done with a Doctor’s prescription. Prescription is not applicable for surgery and pregnancy cases or people planning to travel abroad.

Method: Venipuncture

Step 2

Laboratory Analysis

Standard blood collection procedure using venipuncture.

Step 3

Report Delivery

No specific instructions; apply pressure to the puncture site.

Timeline: 3-4 days

Patient Instructions

1
Before the Test:VNTR Chimerism Study [POST-BMT] can be done with a Doctor’s prescription. Prescription is not applicable for surgery and pregnancy cases or people planning to travel abroad.
2
During the Test:Standard blood collection procedure using venipuncture.
3
After the Test:No specific instructions; apply pressure to the puncture site.

About This Test

Who Should Get This Test

To diagnose and monitor chimerism after bone marrow transplant, ensuring graft success and detecting complications early.

How to Prepare

  • Use EDTA vacutainer
  • Keep sample cool with cool pack

Doctor's Notes

Reviewed by — MBBS, MD (General Medicine) · Reg. No. 8052

"This test is crucial for monitoring post-BMT patients to ensure graft success and prevent complications like graft failure or GVHD."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypePeripheral blood of recipient and donor
Sample Volume2 ml
ContainerEDTA Vacutainer
Collection MethodVenipuncture

Sample Stability

Stable for 24 hours at room temperature
Refrigerate for longer storage
Sample Rejection Criteria:
  • Hemolyzed sample
  • Clotted sample
  • Insufficient volume

Understanding Your Results

Results indicate the level of donor chimerism, which helps assess transplant success.
📊

High chimerism (≥95%)

Indicates successful engraftment and good transplant outcome.

📊

Low chimerism (<95%)

May indicate graft failure, rejection, or need for further monitoring.

⚠️ When to Consult a Doctor:

If experiencing symptoms like delayed engraftment, graft failure, or signs of GVHD, or if chimerism results are abnormal.

Limitations

  • Cannot detect chimerism below 1% in some cases
  • Requires accurate donor sample for comparison

Risks & Considerations

  • Bruising at puncture site
  • Infection
  • Fainting

Interfering Factors

  • Sample contamination
  • Improper storage
  • Recent blood transfusion

Frequently Asked Questions

What is VNTR Chimerism Study?
It is a test that uses Variable Number Tandem Repeats analysis to detect and quantify donor and recipient cells after a bone marrow transplant.
Why is this test done after BMT?
To monitor engraftment success, detect chimerism, and identify complications like graft failure or GVHD.
How is the test performed?
Peripheral blood samples from recipient and donor are collected and analyzed using end-point PCR in a laboratory.
What are the symptoms of chimerism?
Chimerism is often asymptomatic, but symptoms may include delayed engraftment, graft failure, rejection, or GVHD.
What is the cost of the test?
The cost is INR 7500, with free home sample collection available across India.
Is home collection available?
Yes, free home sample collection is offered for online bookings in numerous cities across India.
How long does it take to get results?
Results are typically available within 3-4 days.
What does a low chimerism percentage mean?
It may indicate graft failure, rejection, or the need for further medical intervention.
Is the test painful?
The test involves a standard blood draw, which may cause minor discomfort or bruising.
Do I need a doctor's prescription?
Yes, a doctor's prescription is required, except for surgery, pregnancy, or travel abroad cases.
What is the accuracy of the test?
The test is highly sensitive, capable of detecting chimerism at a level of 1% or less.
Can this test detect graft-versus-host disease (GVHD)?
While it monitors chimerism, GVHD diagnosis typically requires additional clinical evaluation and tests.
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 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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