![]() ![]() Family history or previous child with a genetic disease or metabolic disorder, such as Down syndrome, cystic fibrosis, or Tay Sachs disease.Some conditions where an amniocentesis may be used for genetic and chromosome testing in the second trimester of pregnancy include: It may also be used to follow-up when an earlier test suggests a problem. Results from fetal lung maturity tests are ready within a few hours.Īn amniocentesis is offered to women between the 15th and 20th weeks of pregnancy who are at greater risk for birth defects. Results are most often ready in about 10 days to 14 days, depending on the lab. The fluid is sent to a lab so that the cells can grow and be analyzed. If a baby is expected to be delivered early, amniocentesis may be done to check for fetal lung maturity. This procedure may be done in late pregnancy to check fetal well-being and diagnose fetal health problems, such as infection. Testing may also be done to check for inherited gene defects and metabolic disorders based on the family history.Īmniotic fluid also contains other substances that give information about the fetus. These cells have genetic information that can be used to diagnose genetic disorders and open neural tube defects (ONTDs), such as spina bifida. Helps control the temperature of the fetusĪlong with various enzymes, proteins, hormones, and other substances, the amniotic fluid contains cells shed by the fetus. ![]() Allows the baby to move and develop properly.Amniotic fluid is a clear, pale yellow fluid that: This is the fluid that surrounds the fetus in a pregnant woman. Amniocentesis is a procedure used to take out a small sample of the amniotic fluid for testing. ![]()
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