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Amniocentesis and chorionic villi sampling.
amniocentesis
Chorionic villus sampling can be done at the 8th week. Amniocentesis cannot be performed until the 14th week of pregnancy.
Ultrasound, amniocentesis or chorionic villi sampling checks for chromosomal abnormalities in the fetus.
That sounds like either amniocentesis or chorionic villus sampling.
Amniocentesis or chorionic villi sampling can be used to determine if the fetus has Tay-Sachs disease.
Prenatal diagnosis of Types A and B of NPD can be done with amniocentesis or chorionic villus sampling.
Chorionic villus sampling, amniocentesis and bone marrow procedures are done under a physician's supervision. The person is asked to rest after the procedure and is watched for weakness and signs of bleeding.
Doctors may use ultrasound to guide the biopsy needle during amniocentesis and chorionic villus sampling.
CVS (Chorionic Vili Sampling) and Amniocentesis. (High School Biology Student)