| Prenatal tests called amniocentesis and chorionic villus sampling can diagnose Tay-Sachs before birth. |
| That means that about one woman in every 100 having an amniocentesis will suffer a miscarriage as a result. |
| Prenatal tests including amniocentesis and ultrasound may help to determine whether the fetus is infected. |
| My husband and I stated that we would not undergo an amniocentesis and were given a highly sophisticated ultrasound instead. |
| Some women aged over 35 years opted directly for amniocentesis, and in others an abnormal scan result led to the diagnosis of Down's syndrome. |
| In amniocentesis, the health care provider inserts a thin needle through the woman's abdomen. |
