Chorionic Villus Sampling (CVS)
Why the test is done:
This test can be used to determine if your baby has a chromosomal disorder.
How the test is done:
A small needle/catheter is placed either through the abdomen or through the vagina near the uterus to collect a small sample of villi. Ultrasound is used to guide the needle/catheter away from the baby and the placenta.
When the test is done:
Genetic disorders testing can be done as early as 8 weeks.
How the results are given:
Depends on the results. Usually the genetic defect is identified or a normal baby is identified, including gender.
Risks involved:
There is a 3-5% miscarriage rate associated with this test. There are also some studies that suggest that there may be a slight increase in the number of limb deformities from amniotic banding syndrome.
From Pregnancy.about.com
Why the test is done:
This test can be used to determine if your baby has a chromosomal disorder.
How the test is done:
A small needle/catheter is placed either through the abdomen or through the vagina near the uterus to collect a small sample of villi. Ultrasound is used to guide the needle/catheter away from the baby and the placenta.
When the test is done:
Genetic disorders testing can be done as early as 8 weeks.
How the results are given:
Depends on the results. Usually the genetic defect is identified or a normal baby is identified, including gender.
Risks involved:
There is a 3-5% miscarriage rate associated with this test. There are also some studies that suggest that there may be a slight increase in the number of limb deformities from amniotic banding syndrome.
From Pregnancy.about.com
