With regard to prenatal genetic testing, nurses should be aware that:

A

Feedback
A Maternal serum screening identifies the risk for the neural tube defect and the specific chromosome abnormality involved in Down syndrome.
B Carriers of some diseases such as sickle cell disease do not display symptoms.
C Predisposition testing determines susceptibility such as for breast cancer; presymptomatic testing indicates that, if the gene is present, symptoms are certain to appear.
D Predisposition testing determines susceptibility such as for breast cancer; presymptomatic testing indicates that if the gene is present, symptoms are certain to appear.