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Age of Viability |
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Script: By 21 to 22 weeks after fertilization, the lungs gain some ability to breathe air. This is considered the age of viability because survival outside the womb becomes possible for some fetuses. | ||
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All ages referenced to fertilization, not last menstrual period.
One month = 4 weeks.
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Age of Viability
( 5 months, 1 week) |
Blink-Startle Response
( 6 months) |
Somersaults
( 6 months, 1 week) |
Exposure to Loud Noise
( 6 months, 1 week) |
Fetal Respiratory Rate
( 6 months, 1 week) |
Rapid Brain Growth
( 6 months, 1 week) |
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