This topic will help you learn about the chorionic villus sampling (CVS) test and how to prepare for it.
What is chorionic villus sampling?
Chorionic villus sampling (CVS) is a prenatal test that involves taking a sample of placental tissue to check for chromosomal abnormalities and certain other genetic problems. The placenta is an organ in the uterus that provides blood and nutrients from the mother to the fetus.
When is chorionic villus sampling performed?
CVS is often used to diagnose certain genetic diseases such as:
- Tay–Sachs disease.
CVS is also Recommended for pregnant women at higher risk of having a baby with a chromosomal disorder. Risk factors include:
- Being 35 years of age or older.
- A family history of a genetic disorder.
- Having had a child with a genetic disorder.
How to prepare for chorionic villus sampling?
Before the procedure:
- Inform your doctor about any medications you are taking.
- Inform your doctor about any health problems you have.
- Your doctor may ask you to drink extra fluids and arrive with a full bladder, as this can help move the uterus into a better position for the procedure.
