What term refers to the complete expulsion or extraction from a woman of a fetus after 22 completed weeks of gestational age, irrespective of live birth or stillbirth?

What term refers to the complete expulsion or extraction from a woman of a fetus after 22 completed weeks of gestational age, irrespective of live birth or stillbirth?

• A. Birth (single)
• B. Blastocyst
• C. Bleeding after oocyte aspiration
• D. Chimerism

Answer: (A)

Birth refers to the complete expulsion or extraction of a fetus from the mother after 22 completed weeks of gestation, regardless of whether the infant is born alive or stillborn. This threshold is used to distinguish birth events from earlier pregnancy losses and to categorize outcomes consistently in medical records and statistics. The other terms don’t describe this event: a blastocyst is an early embryonic stage, bleeding after oocyte aspiration is a procedural complication, and chimerism is the presence of two different genetic cell lines in one person.

Birth refers to the complete expulsion or extraction of a fetus from the mother after 22 completed weeks of gestation, regardless of whether the infant is born alive or stillborn. This threshold is used to distinguish birth events from earlier pregnancy losses and to categorize outcomes consistently in medical records and statistics. The other terms don’t describe this event: a blastocyst is an early embryonic stage, bleeding after oocyte aspiration is a procedural complication, and chimerism is the presence of two different genetic cell lines in one person.