The __________ is the age at which a fetus can survive in the event that it is born early.

The age of viability is the point in fetal development when a fetus may be able to survive outside the uterus if born prematurely. “Gestational age” measures how long a pregnancy has lasted, while “prenatal age” and “age of sustainability” are not the standard terms for this concept. The best answer is age of viability.

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