In trisomy 18, what is the typical life expectancy after birth?

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Multiple Choice

In trisomy 18, what is the typical life expectancy after birth?

Explanation:
Trisomy 18 (Edwards syndrome) has a very poor prognosis because of multiple severe congenital anomalies, especially heart and organ malformations, which lead to high neonatal mortality. The typical life expectancy after birth is a few weeks. While some infants may survive for several months or even reach around a year, these outcomes are uncommon. Therefore, a few weeks best reflects the usual course. The other timeframes (several months, one year or longer, or several years) happen only in a minority of cases and are not representative of the typical prognosis.

Trisomy 18 (Edwards syndrome) has a very poor prognosis because of multiple severe congenital anomalies, especially heart and organ malformations, which lead to high neonatal mortality. The typical life expectancy after birth is a few weeks. While some infants may survive for several months or even reach around a year, these outcomes are uncommon. Therefore, a few weeks best reflects the usual course. The other timeframes (several months, one year or longer, or several years) happen only in a minority of cases and are not representative of the typical prognosis.

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