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Chromosome Analysis Chorionic Villus Test

DNA Labs India | ISO 9001:2015 Certified

Chromosome Analysis Chorionic Villus Test

Short Name: CVS Test

Also known as: Chorionic Villus Sampling, CVS Test, Chromosomal Analysis CVS

Chromosome Analysis Chorionic Villus Test test available at DNA Labs India for ₹14,000. Uses Culture, Microscopy, Karyotype on Chorionic villus biopsy samples. Results in Results are typically available within 21 working days from the date the sample is received by the laboratory.. Free home collection in 300+ cities across India.

GynecologistFemalePregnant Women🏠 Home Collection

🩺 Medically Reviewed By

Overview

The purpose of the chromosome analysis chorionic villus test is to identify chromosomal abnormalities in the fetus during early pregnancy, allowing for timely medical intervention, genetic counseling, and informed parental decision-making.

Test Code
313
Price
₹14,000
Sample Type
Chorionic villus biopsy
Result Time
Results are typically available within 21 working days from the date the sample is received by the laboratory.
Fasting Required
No
Method
Culture, Microscopy, Karyotype
Step 1

Sample Collection

No special preparation required. Ensure all consent forms (Form 17 and Form 18) are duly filled. Inform your doctor about any medications or health conditions.

Method: Aseptic biopsy collection under ultrasound guidance

Step 2

Laboratory Analysis

The collection is performed under ultrasound guidance by a trained healthcare professional. A small biopsy of chorionic villi is taken from the placenta using a needle or catheter, which may cause mild discomfort.

Step 3

Report Delivery

After collection, rest for a while and avoid strenuous activities. Mild cramping or spotting may occur. Contact your doctor if you experience severe pain, heavy bleeding, or fever.

Timeline: Results are typically available within 21 working days from the date the sample is received by the laboratory.

Patient Instructions

1
Before the Test:Ensure you are within 10-13 weeks of gestation. Complete all required consent forms and discuss any concerns with your healthcare provider.
2
During the Test:The procedure typically takes about 30 minutes. You may feel mild pressure or cramping during sample collection.
3
After the Test:Rest for the remainder of the day and avoid heavy lifting. Monitor for any unusual symptoms and follow up with your doctor as needed.

About This Test

Who Should Get This Test

The purpose of the chromosome analysis chorionic villus test is to identify chromosomal abnormalities in the fetus during early pregnancy, allowing for timely medical intervention, genetic counseling, and informed parental decision-making.

How to Prepare

  • Sample must be collected between 10-13 weeks of gestation
  • Use strict aseptic precautions during collection
  • Ship sample refrigerated immediately; do not freeze
  • Specimen must reach the laboratory within 48 hours of collection

Doctor's Notes

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

"As a gynecologist, I recommend this test for pregnant women with risk factors for chromosomal abnormalities to enable early diagnosis and informed decision-making."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeChorionic villus biopsy
Sample Volume40 mg (20 mg min.)
Container10 mL transport medium
Collection MethodAseptic biopsy collection under ultrasound guidance

Sample Stability

Room Temperature
Refrigerated
Frozen
Sample Rejection Criteria:
  • Insufficient sample weight (less than 20 mg)
  • Improper storage or delayed shipment beyond 48 hours
  • Contaminated or hemolyzed sample
  • Missing or incomplete requisition and consent forms

Understanding Your Results

Results from chromosome analysis chorionic villus test indicate whether there are any chromosomal abnormalities in the fetus. A normal result suggests typical chromosomes, while an abnormal result may indicate conditions like trisomy 21 (Down syndrome) or other chromosomal disorders.
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Normal Karyotype

No chromosomal abnormalities detected. However, this does not rule out all genetic conditions, and further testing may be recommended based on clinical context.

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Abnormal Karyotype

Chromosomal abnormality detected, such as aneuploidy or structural changes. Genetic counseling and confirmatory testing are advised.

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Inconclusive Result

Test results are unclear due to technical issues. Repeat testing or alternative diagnostic methods like amniocentesis may be suggested.

⚠️ When to Consult a Doctor:

Consult your doctor immediately if you experience abnormal symptoms after the test, such as severe pain or heavy bleeding, or to discuss the results and next steps, especially if abnormalities are detected.

Limitations

  • May not detect all genetic or chromosomal disorders
  • Results can take up to 21 working days
  • Small risk of miscarriage associated with the procedure
  • Cannot diagnose single-gene disorders unless specifically targeted

Risks & Considerations

  • Risk of miscarriage (approximately 0.5-1%)
  • Infection at the biopsy site
  • Vaginal bleeding or cramping
  • Rh sensitization in Rh-negative mothers

Interfering Factors

  • Maternal cell contamination
  • Failed cell culture
  • Insufficient sample quantity
  • Improper sample storage or transport delay

Compare With Similar Tests

TestChromosome Analysis Chorionic Villus TestAmniocentesisNon-Invasive Prenatal Testing (NIPT)Fetal Ultrasound
ComparisonChromosome Analysis Chorionic Villus TestPerformed later in pregnancy (15-20 weeks) with similar diagnostic accuracy but a slightly higher risk of miscarriage.A screening test with lower risk but not diagnostic; requires confirmation with CVS or amniocentesis if positive.An imaging test that can identify physical markers but cannot provide a definitive chromosomal diagnosis.

Frequently Asked Questions

What is the Chromosome Analysis Chorionic Villus Test?
It is a prenatal diagnostic test that analyzes a sample of chorionic villi from the placenta to detect chromosomal abnormalities in the fetus.
When is the best time to perform this test?
The test is recommended between 10 to 13 weeks of gestation for optimal accuracy and safety.
How is the sample collected for this test?
A small biopsy of chorionic villi is collected aseptically under ultrasound guidance by a trained healthcare professional.
Is the Chromosome Analysis Chorionic Villus Test painful?
You may experience mild discomfort or cramping during the procedure, but it is generally well-tolerated with minimal pain.
What are the risks associated with this test?
Risks include a small chance of miscarriage, infection, bleeding, or cramping. Discuss your specific risks with your doctor.
How accurate is the chromosome analysis from CVS?
The test is highly accurate for detecting chromosomal abnormalities, but like any diagnostic test, it is not 100% infallible.
What does a normal result from this test mean?
A normal result indicates that no chromosomal abnormalities were detected, but it does not rule out all genetic conditions.
What should I do if the test result is abnormal?
Consult your doctor or a genetic counselor to understand the implications and discuss further testing or management options.
How long does it take to receive the test results?
Results are typically available within 21 working days from the date the sample is received by the laboratory.
Can the Chromosome Analysis Chorionic Villus Test be done at home?
The sample collection requires a healthcare professional, but DNA Labs India offers free home collection services for transporting the sample.
Is this test covered by health insurance in India?
Coverage varies by insurance plan. Please check with your insurance provider for details on coverage for prenatal diagnostic tests.
Why should I choose DNA Labs India for the Chromosome Analysis Chorionic Villus Test?
DNA Labs India offers the test at an affordable cost of INR 14,000 with free home collection, accurate results, timely reporting, and strict confidentiality.
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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