The definition of a skill is a talent or ability that comes from training or practice. 1  An example of skill is the capability to produce fine works of art.  An example of skill is basket weaving.
A normal WBC count is, as I wrote, anywhere and everywhere from 4.5 to 10.0 but during pregnancy those normal values can be between 6 and 16 in the third trimester and may reach 20 to 30 in labor and in early postpartum.
Maximal accuracy requires that the initial sample be obtained at 16-18 weeks of gestation. MSAFP levels are elevated (2.5 multiples of the median (MOM) in 80 percent to 90 percent of pregnancies in which the fetus has an NTD.or example, in a 25-year-old woman the risk of delivering an infant with Down syndrome, based on age alone, is one in 1,250. If her MSAFP level is 0.36 MOM at 16 weeks of gestation, however, the risk is increased to one in 257.