An amniocentesis DNA Test is a prenatal test. This test can diagnose genetic disorders and other health-related problems during pregnancy. For this test a small sample of amniotic fluid is collected from inside of the uterus, the sample is used to check for genetic abnormalities.
As this is an invasive diagnostic test to collect the sample the doctor will use a long, thin needle to collect amniotic fluid from the uterus. The DNA collected is then be compared with the DNA sample from the potential father. The result can be used to determine paternity, to find any kind of defects in genetic makeup, or to check any kind of inherited genes that might cause a problem for the child.
Amniocentesis can detect various kinds of chromosomal and birth abnormalities in a developing fetus. like:
Down syndrome
Neural tube defects, such as spina bifida
Genetic disorders – like cystic fibrosis.
So you discussing it with your doctor before taking this test is necessary.