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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 ...
Pregnancy is the time during which one or more offspring develops inside a woman's uterus (womb). [4] [13] A multiple pregnancy involves more than one offspring, such as with twins. [14] Pregnancy usually occurs by sexual intercourse, but can also occur through assisted reproductive technology procedures. [6]
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]
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.
Long-term survival is possible after 22 weeks. [59] However, odds of long-term survival between 22 and 23 weeks are 2–3 percent and odds of survival between 23 and 24 weeks are 20 percent. [60] "Intact survival", which means survival of a neonate without subsequent damage to organs such as the brain or bowel is 1% at 22 weeks and 13% at 23 ...
In human reproduction, a live birth occurs when a fetus exits the mother showing any definite sign of life such as voluntary movement, heartbeat, or pulsation of the umbilical cord, for however brief a time and regardless of whether the umbilical cord or placenta are intact. [1] After the fetus is expelled from the maternal body it is called a ...
Hence, the gestational timing of a fetal toxin exposure, fetal drug exposure or vertically transmitted infection can be used to predict the potential consequences to the fetus. Estimated date of delivery; Scheduling prenatal care; Estimation of fetal viability; Calculating the results of various prenatal tests, (for example, in the triple test).
"Fetal viability" means: the point in pregnancy when, in the professional judgment of an attending 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.