Question

Which of the following factors of maternal history places the fetus at high risk?

Answer 1

Maternal factors that place the fetus at high risk include maternal age, lifestyle factors, and teratogen exposure. Certain lifestyle factors, such as alcohol consumption and infection by rubella virus, can also increase the risk of birth defects and developmental issues in the fetus.

Step-by-step explanation:

Factors of maternal history that place the fetus at high risk include:

1. Mother's age: The incidence of having a fetus with trisomy 21 (Down syndrome) increases dramatically with maternal age.
2. Lifestyle factors: Certain lifestyle factors, such as alcohol consumption and infection by rubella virus, can also increase the risk of birth defects and developmental issues in the fetus.
3. Teratogen exposure: The duration of exposure to teratogens, the time of exposure, and the degree of transfer from maternal to fetal circulation can all impact the risk to the fetus.

Certain lifestyle factors, such as alcohol consumption and infection by rubella virus, can also increase the risk of birth defects and developmental issues in the fetus. The duration of exposure to teratogens, the time of exposure, and the degree of transfer from maternal to fetal circulation can all impact the risk to the fetus.