Trisomy 18 and trisomy 13 in the context of fetal CHD are important to consider because?

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Multiple Choice

Trisomy 18 and trisomy 13 in the context of fetal CHD are important to consider because?

Trisomy 18 and trisomy 13 are chromosomal abnormalities that, when present with fetal heart disease, usually come with a heavy burden of cardiac defects. In practice, this means the heart defects are often severe and multiple rather than isolated and mild, and the overall outlook for the fetus and newborn is poor. This combination—complex, extensive CHD plus additional anomalies and medical complications—drives a much more unfavorable prognosis. That’s why the statement that these trisomies are commonly associated with severe and multiple CHDs and have a poor prognosis best fits the scenario. Options suggesting mild CHD or no impact on prognosis don’t reflect the reality that these chromosomal conditions typically accompany substantial, often nonviable, outcomes, and they significantly influence counseling, management, and delivery planning in fetal care.

Trisomy 18 and trisomy 13 are chromosomal abnormalities that, when present with fetal heart disease, usually come with a heavy burden of cardiac defects. In practice, this means the heart defects are often severe and multiple rather than isolated and mild, and the overall outlook for the fetus and newborn is poor. This combination—complex, extensive CHD plus additional anomalies and medical complications—drives a much more unfavorable prognosis. That’s why the statement that these trisomies are commonly associated with severe and multiple CHDs and have a poor prognosis best fits the scenario.

Options suggesting mild CHD or no impact on prognosis don’t reflect the reality that these chromosomal conditions typically accompany substantial, often nonviable, outcomes, and they significantly influence counseling, management, and delivery planning in fetal care.

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