U.S. doctors online nowAsk doctors free
A 37-year-old member asked:

someone here please explain the difference between chorionic villus sampling and amniocentesis?

2 doctor answers5 doctors weighed in
Dr. Marilynn Frederiksen
Maternal-Fetal Medicine 47 years experience
CVS and Amnio: A cvs is done earlier in pregnancy and involves getting tissue from the placenta. An amniocentesis is done later in pregnancy. It involves getting amniotic fluid from the gestational sac. Chromosomal abnormalities can be found by both techniques. An amniocentesis can also check for neural tube defects. A genetic disease, such as cystic fibrosis can be diagnosed by either technique.
Dr. Miguel Cano
Obstetrics and Gynecology 30 years experience
Placenta vs fluid: Cvs can usually be done earlier and involves obtaining placental tissue for chromosome analysis. This is done by needle biopsy either through the cervix or abdomen. Amniocentesis is obtaining amniotic fluid for testing also by needle aspiration. Both are done with ultrasound guidance, cvs slightly riskier with bleeding & cramping, both safe to do, both done by mfm docs. I hope that helps.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

A 44-year-old member asked:

How can I prevent having a miscarriage as a result of amniocentesis or cvs?

2 doctor answers6 doctors weighed in
Dr. Terrence Harris
Obstetrics and Gynecology 23 years experience
Follow instructions: No matter what you do, there is always a risk of miscarriage following these procedures. Most doctors who perform them will tell you to limit your activity for 24-48 hours after the procedure. Make sure to follow all instructions you are given to minimize the risk of miscarriage.
Dr. Celia Dominguez
Fertility Medicine 34 years experience
Ask the doctor their own rates especially for cvs and no doubt the more experience a physician has the lower the risks usually in their hands.
Dec 8, 2014
A 32-year-old member asked:

If the amniocentesis shows lung problems. Can this be reversed?

2 doctor answers4 doctors weighed in
Dr. Padmavati Garvey
A Verified Doctoranswered
A US doctor answeredLearn more
Yes: The amniocentesis will generally show if the baby's lungs are mature yet or not. Given enough time all baby's will have mature lungs.
A 31-year-old member asked:

Which specific doctors perform a chorionic villus sampling test?

2 doctor answers2 doctors weighed in
Dr. Golder Wilson
Specializes in Clinical Genetics
MFMs: Your obstetrician would refer you to a maternal-fetal medicine specialist (perinatologist) or you may have one already if a prior pregnancy or other circumstances caused your current pregnancy to be high risk.
A 34-year-old member asked:

Had amnio for twins. Now leaking blue liquid from vagina. What should I do?

1 doctor answer3 doctors weighed in
Dr. David Zisow
Obstetrics and Gynecology 47 years experience
Contact the doctor: One complication of amniocentesis is premature membrane rupture. Contact your doctor asap and follow his/her instructions.
A 37-year-old member asked:

Is alcholol used on the skin to clean it before amnio?

1 doctor answer1 doctor weighed in
Dr. Tara Passow
Dermatology 40 years experience
Maybe: I think this varies from one institution to another. Antibacterial cleansers of various types are also used.

Related questions

A 40-year-old member asked:
2 doctor answers6 doctors weighed in
A 24-year-old member asked:
2 doctor answers2 doctors weighed in
A 32-year-old member asked:
2 doctor answers3 doctors weighed in
A 45-year-old member asked:
1 doctor answer2 doctors weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Dec 29, 2016
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with
membership

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.