Your doctor can help you understand the pros and cons of having this test. PCR testing for history or ultrasound based indication. After abnormal results from other early screening tests for chromosomal (DNA) abnormalities or a neural tube defect.Problems in spine and brain growth (known as a neural tube defect)-problems in spine and brain growth, such as.It permits a rapid and certain differential diagnosis between leukorrhea, hydrorrhea, urinary incontinence and spontaneous amniotomy. If mother is over 35 years of age at the time of delivery Abstract A simple and inexpensive test is described which permits positive identification of amniotic fluid by its fern-type crystallization.Look for Rh-sensitization-when mother and baby have different blood types.Make sure the baby's lungs are developed enough for the baby to breathe on their own (in high-risk pregnancies that may require early delivery of the baby).
Later in pregnancy, an amniocentesis may be done to: Sickle cell disease-More common among people of African descent.Cystic fibrosis-More common among Caucasians of northern European ancestry.Tay-Sachs disease-More common among Ashkenazi Jewish population.Inherited genetic diseases-Examples include: Depending on your risk factors, cells in the amniotic fluid are tested for:Ĭhromosome (DNA) abnormalities-missing or extra chromosomes lead to physical birth defects and/or They can also show if the baby is developing as expected. The test may be done if your baby has a high risk of a birth defect. This is the fluid that surrounds the fetus in a pregnant woman. Cells found in the fluid can be used to examine the baby's genes. Amniocentesis is a procedure used to take out a small sample of the amniotic fluid for testing.
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