Diagnostic Procedures

Here are definitions of medical terms related to amniocentesis: Alpha-fetoprotein: A protein, also called AFP, which the fetus produces in its liver and brain. The level of alpha-fetoprotein tends to increase in the amniotic fluid when a fetus has an open neural tube defect or abdominal wall defect. The protein can be found in adults as […]

Here is a summary of the important facts and information related to amniocentesis: Amniocentesis is a relatively painless procedure that is performed in a doctor’s office or hospital. A small amount of the amniotic fluid bathing a fetus is removed during amniocentesis to identify potential birth defects and many other problems. The procedure involves inserting a needle

Here are some frequently asked questions related to amniocentesis: Q: Does amniocentesis hurt? A: Most women will feel slight pain during amniocentesis. For the first day or so afterward, some women may feel cramps like those during their menstrual period, but that is the most discomfort a woman undergoing the procedure is likely to experience. Bleeding,

Amniocentesis is highly accurate, but expectant parents must wait until at least the 15th week of pregnancy, and it does involve some risks. There are some other tests available that can either be done earlier or are less invasive. Chorionic Villus Sampling (CVS) Chorionic Villus Sampling (CVS) is an alternative to amniocentesis that can be

Doctors typically encourage a formal counseling session – not just a short discussion in the doctor’s office – before parents decide about genetic amniocentesis. In the counseling session, parents can weigh the benefits against the modest risk from the procedure. They can also discuss specific gene or chemical tests that family and maternal histories may

Millions of women have safely undergone amniocentesis. However, the procedure does carry some risks: Miscarriage: The rate of miscarriage is estimated to be between one in 200 and one in 500. Infection: The procedure carries a low risk of uterine infection (less than one in 1,000), which can cause labor. If such an infection occurs,

In amniocentesis, ultrasound (sound wave) monitoring is used to find the amniotic fluid and the placenta, to keep track of the fetus, and to insert the amniocentesis needle away from the baby. For more detailed information about ultrasound, go to Ultrasound. Drawing Amniotic Fluid The doctor or technician conducting the test will carefully clean the skin

There are two types of tests that can be performed on amniotic fluid to show different types of problems with the fetus: Genetic amniocentesis Chemical tests The cells in the amniotic fluid contain genetic material that can be used to observe chromosomal abnormalities or defects in specific genes. Biochemical substances, like proteins and lipids, can