Facts About Amniocentesis
Apart from the traditional conventional blood sample, there are many methods using several sampling now obtainable in profiling DNA for paternity identification.
One of these advanced systems is known as amniocentesis. It truly is a.k.a. amniotic fluid test or AFT. Originally, amniocentesis is a prenatal procedure to diagnose the chromosomal abnormalities and fetal infections.
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The amniocentesis is performed in the second trimester or during the 14th to 20th weeks of pregnancy. In this procedure, the OB-GYN uses ultrasound to guide a thin needle into the uterus passing by means of the abdominal wall then finally into the amnion or amniotic sac. Prior to the method starts, local anesthetic is supplied towards the pregnant woman as a way to relieve the anguish felt when the insertion of needle happens.
The needle draws out an adequate amount of amniotic fluid. This is about 20ml. This fluid is taken from the amnion sac that surrounds the fetus. The fluid contains fetal tissues. Right after the extraction of amniotic fluid, the fetal cells shall be separated from the sample. It will be grown in a culture medium, fixed, and then stained. Following the procedure, the puncture heals and the amniotic sac replenishes the fluid within 24 to 48 hours.
This action is usually performed from the hospital. Then it will be collected by laboratories for testing. More often than not, results are readily available within three to five operating days.
Apart from paternity DNA testing and as mentioned above, this action is applied to examine their youngster for achievable abnormalities like anencephaly, Down syndrome, Edward syndrome, and Tunner syndrome, Trisomy 13 and 18, inherited metabolic disorders, infection, Rh incompatibility, and spina bifida.
Amniocentesis poses risks to pregnancy. Undergoing this process will have a small chance of serious complications like harming the newborn child and miscarriage. Way back inside 1970s, studies showed that amniocentesis causes miscarriage at a rate of 1 in 200, or scarcely half of one percent. 3 decades soon after, studies determined that there is certainly lesser amniocentesis-related miscarriage – only about 1 in 1,600 cases or about.6 %.
This procedure might also result in injury to the youngsters limbs. Other adverse effects can also be cramping, leaking of amniotic fluid, and vaginal bleeding. Yet, records show approximately six percent of pregnant women take into account undergoing the amniocentesis treatment. Also, about 7% of ladies who go through this text have not felt any soreness.
Other possible complications can sometimes include infection with the amniotic sac from the needle. In addition, there’s a chance that the puncture will not heal correctly that can result to leakage or infection in the amniotic sac. It may also cause preterm labor and delivery, postural deformities, respiratory distress, and fetal trauma.
Meanwhile, experts are likewise amniotic fluid as possible source of numerous kinds of stem cells. One or more of the doable advantages of amniotic stem cells is that it avoids ethical concerns among pro-life advocates. These days, there’s one particular active amniotic stem cell from the US.
It must be observed that pregnant women who wants to undergo these kinds of treatment for paternity DNA testing would require a physicians consent.