Q A Why Cvs Amnio
Both amniocentesis and CVS (chorionic villussampling) are diagnostic tests for chromosomal and genetic disorders such as Down syndrome and cystic fibrosis. Amnio also can detect neural tube defects such as spina bifida. About two or three of every hundred babies is born with such a defect, and most occur in the first three months of gestation. Because of the slightly increased miscarriage risk (more about this later), neither test is offered routinely....