![]() If there is a significant problem, the parents may decide to terminate the pregnancy.Īmniocentesis can detect several conditions. ![]() If so, a blood transfusion may be possible. If the doctor diagnoses a problem at this stage, it may be possible to treat it before the fetus leaves the womb.Īmniocentesis may detect Rh disease, which can lead to severe anemia in the fetus. They will be able to detect any potential problems. Share on Pinterest Amniocentesis can help in diagnosing Down syndrome at an early stage of pregnancy.Īnalyzing these cells enables a doctor to assess fetal health. The fluid carries fetal tissue, including skin cells and fetal waste products, so it can be used to assess whether the fetus is developing normally, or if it is at risk of developing a serious health condition or abnormality.Įach cell from the fetus contains a complete set of DNA, or genetic information. In the lab, the fetal DNA is examined for genetic abnormalities. The whole procedure takes around 45 minutes, but the extraction of the fluid itself takes less than 5 minutes. This represents about 1 ml of fluid per week of gestation. ![]() The needle extracts between 10 and 20 milliliters (ml) of amniotic fluid from the sac, and the fluid is sent for testing. ![]() In the test, an ultrasound guides a 22-gauge spinal needle to a safe place in the amniotic sac. The fetus is completely submerged in this fluid. The sac contains a fluid called amniotic fluid. The amniotic sac, or amnion, surrounds the fetus during pregnancy. Share on Pinterest Amniocentesis is an invasive diagnostic procedure in which a doctor examines the genetic materials in a fetus’ surrounding amniotic fluid.Īmniocentesis is often carried out between 15 and 18 weeks of gestation. ![]()
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