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Fetal viability is the ability of a human fetus to survive outside the uterus. Viability depends upon factors such as birth weight , gestational age, and the availability of advanced medical care . In low-income countries , more than 90% of extremely preterm newborns (less than 28 weeks gestational age ) die due to a lack of said medical care ...
Fetal viability refers to a point in fetal development at which the fetus may survive outside the womb. The lower limit of viability is approximately 5 + 3 ⁄ 4 months gestational age and is usually later. [20] There is no sharp limit of development, age, or weight at which a fetus automatically becomes viable. [21]
In human medicine, parity is the number of pregnancies carried by a female for at least 20 weeks (duration varies from region to region, 20 – 28 weeks, depending upon age of viability). If a female carries the fetus to viable age, even if ultimately the fetus is born deceased, this still counts as an instance of parity, as parity is based on ...
Even in states where abortion is legal, many restrict the procedure after 'fetal viability.' Here's what that means and why some abortions happen later in pregnancy.
In the developed world, overall survival is about 90% while in low-income countries survival rates are about 10%. [191] Some children will adjust well during childhood and adolescence, [180] although disability is more likely nearer the limits of viability. A large study followed children born between 22 and 25 weeks until the age of 6 years old.
2. "Fetal viability" means the point in pregnancy when, in the good-faith judgement of a treating health-care professional, and based on the particular facts of the case, there is a significant likelihood of the fetus's sustained survival outside the uterus, without the application of extraordinary medical measures. 3.
[6] [7] Some use the cutoff of 20 weeks of gestation, after which fetal death is known as a stillbirth. [8] The death of the fetus or neonate at the end of the pregnancy, during labour and delivery, or just after birth is counted as perinatal mortality.
Depending on the situation, it may or may not be possible to save the patient and it may or may not be possible to save her fetus. But for both, a resuscitative hysterotomy is the best chance of survival. Prior to viability (approximately 24 weeks' gestation), it is not possible to save the fetus. It cannot survive outside the womb, but also ...