40-70% of babies born at 24 weeks that survived according to studies between 2003 and 2005.
40-70% of babies born at 24 weeks that survived according to studies between 2003 and 2005.
percentage of babies born at 24 weeks that survive according to studies between 2003 and 2005?
40-70%
there is no sharp limit of development, gestational age, or weight at which a human fetus automatically becomes viable. according to studies between 2003 and 2005, 20 to 35 percent of babies born at 24 weeks of gestation survive, while 50 to 70 percent of babies born at 25 weeks, and more than 90 percent born at 26 to 27 weeks, survive. it is rare for a baby weighing less than 500 g (17.6 ounces) to survive. the chances of a fetus surviving increase 3-4% per day between 23 and 24 weeks of gestation and about 2-3% per day between 24 and 26 weeks of gestation. after 26 weeks the rate of survival increases at a much slower rate because survival is high already.
fetal viability
bullet::::- mild









































bullet::::- breathing room air at 36 weeks' post-menstrual age or discharge (whichever comes first) for babies born before 32 weeks, or









































bullet::::- breathing room air by 56 days' postnatal age, or discharge (whichever comes first) for babies born after 32 weeks' gestation.









































bullet::::- moderate









































bullet::::- need for 30% oxygen at 36 weeks' postmenstrual age, or discharge (whichever comes first) for babies born before 32 weeks, or









































bullet::::- need for 30% oxygen to 56 days' postnatal age, or discharge (whichever comes first) for babies born after 32 weeks' gestation.









































bullet::::- severe
bronchopulmonary dysplasia