A patient wants to know the risk factors for Down syndrome. What is the nurse's best response?
a. Fetal exposure to mutagens in the uterus.
b. Increased paternal age.
c. Family history of Down syndrome.
d. Pregnancy in women over age 35.
ANS: D
The primary risk for Down syndrome is pregnancy in women over 35. Down syndrome is a tri-somy and not due to fetal exposure or paternal age. Down syndrome is a chromosomal abnormal-ity and is not related to family history.
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