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.
🩺 Medically Reviewed By
Dr SULOCHANA HEMCHANDRA HOLLA
Consultant Medical Geneticist · Reg: 8532
Last reviewed: September 7, 2026
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
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
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.
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
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 Dr SULOCHANA HEMCHANDRA HOLLA — 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 Stability
- 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
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.
Abnormal Karyotype
Chromosomal abnormality detected, such as aneuploidy or structural changes. Genetic counseling and confirmatory testing are advised.
Inconclusive Result
Test results are unclear due to technical issues. Repeat testing or alternative diagnostic methods like amniocentesis may be suggested.
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
| Test | Chromosome Analysis Chorionic Villus Test | Amniocentesis | Non-Invasive Prenatal Testing (NIPT) | Fetal Ultrasound |
|---|---|---|---|---|
| Comparison | Chromosome Analysis Chorionic Villus Test | Performed 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?
When is the best time to perform this test?
How is the sample collected for this test?
Is the Chromosome Analysis Chorionic Villus Test painful?
What are the risks associated with this test?
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Why should I choose DNA Labs India for the Chromosome Analysis Chorionic Villus Test?
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