Currently in the U. S., the age of viability is 24 weeks, but just 4 weeks later the survival rate increased to about 90%.

Question

Quizplus · Accepted Answer

According to the American College of Obstetricians and Gynecologists, the age of viability is generally considered to be around 24 weeks, and the survival rate of infants born at this gestational age is around 50%. However, survival rates increase rapidly with each additional week of gestation, and babies born at 28 weeks have a survival rate of over 90%.