3 doctors weighed in:
Why is it important to do cvs or amniocentesis?
3 doctors weighed in

Dr. Padmavati Garvey
Obstetrics & Gynecology
1 doctor agrees
In brief: Personal decision
Both tests are 100% accurate in determining whether or not the baby has chromosomal problems like down's syndrome.
Women over 40 have a 1 in 20 risk of this. Some people would terminate the pregnancy if they knew the baby had a chromosomal problem. The cvs gives you info earlier than the amnio but has a higher miscarriage rate.

In brief: Personal decision
Both tests are 100% accurate in determining whether or not the baby has chromosomal problems like down's syndrome.
Women over 40 have a 1 in 20 risk of this. Some people would terminate the pregnancy if they knew the baby had a chromosomal problem. The cvs gives you info earlier than the amnio but has a higher miscarriage rate.
Dr. Padmavati Garvey
Dr. Padmavati Garvey
Thank
Dr. Yash Khanna
Family Medicine
In brief: If at increased risk
It is only indicated and may be considered in which there is an increased risk of genetic disorder. If you are 35 or older by the time your baby is due if you previously had a baby with down syndrome or another disoeder like spina bifida and you and your partner are known carriers of genetic disorder like cystic fibrosis.

In brief: If at increased risk
It is only indicated and may be considered in which there is an increased risk of genetic disorder. If you are 35 or older by the time your baby is due if you previously had a baby with down syndrome or another disoeder like spina bifida and you and your partner are known carriers of genetic disorder like cystic fibrosis.
Dr. Yash Khanna
Dr. Yash Khanna
Thank
Get help from a real doctor now
Dr. Jane Van Dis
Board Certified, Obstetrics & Gynecology
14 years in practice
47M people helped
Continue
108,000 doctors available
Read more answers from doctors