This is a diagnostic test and is used to determine birth defects such as Down’s syndrome and genetic diseases such as cystic fibrosis, sickle cell disease etc. But it cannot determine neural tube diseases defects (that amniocentesis which is a similar procedure can determine). [h=4]Who?[/h]This is not a routine test and not all women need to take it. Doctors advise it in the following cases:
- Some (not all) women over age 35 because of an increased risk of Down's syndrome and other genetic conditions
- Women who have had a previous child or pregnancy with a birth defect.
- Women who have a family history of a genetic disorder.
- Women who need further evaluation because of the results of first-trimester screening
- This procedure has a very small risk of miscarriage.
- Some women have cramping or spotting for a few hours after the procedure. Call your doctor if you have heavy bleeding, fever or contractions.