Chorionic Villus Sampling (CVS)
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What is Chorionic Villus Sampling (CVS)?
Chorionic Villus Sampling (CVS) is a prenatal test performed during the first trimester to diagnose genetic conditions in a developing baby. It involves taking a small tissue sample from the placenta, which contains the same genetic material as the fetus. The test helps identify chromosomal abnormalities like Down syndrome, cystic fibrosis, and other inherited disorders.
Why is Chorionic Villus Sampling (CVS) Done?
CVS is recommended in the following situations:
Why is Chorionic Villus Sampling (CVS) Done?
CVS is done to obtain genetic information about the baby early in pregnancy, typically to detect chromosomal or genetic disorders.
What Does Chorionic Villus Sampling (CVS) Check?
CVS checks fetal chromosomes and can detect:
How is Chorionic Villus Sampling (CVS) Performed?
CVS is performed between 10 and 13 weeks of pregnancy:
Ultrasound locates the placenta and safest approach (transabdominal or transcervical).
A thin needle or catheter is used to collect a small sample of chorionic villi (placental tissue).
The sample is sent to the lab for chromosomal/genetic analysis.
Results are discussed with you; genetic counseling is provided.
How to Prepare for Chorionic Villus Sampling (CVS)
Bladder may need to be full or empty depending on approach; your doctor will advise. No fasting usually required. Consent and counseling are done before the procedure.
Understanding Chorionic Villus Sampling (CVS) Results
Normal results suggest no chromosomal abnormality in the tested cells. Abnormal results indicate a genetic condition; our team will explain implications and options, including further testing or pregnancy management.
Cost of Chorionic Villus Sampling (CVS)
Cost of CVS varies by center and type of analysis. Contact us for pricing and to book an appointment.