Final answer:
The Biophysical Profile (BPP), Nonstress Test (NST), and Fetal Movement count are used to assess fetal well-being during the last 6 weeks of gestation, but a Maternal blood count is not. Fetal viability is established after 26 weeks with a high survival rate, and the average full-term birth weight is around 3.4 kg, with low birth weight defined as less than 2.5 kg.
Step-by-step explanation:
Tests Used to Determine Fetal Well-Being (FWB)
During the last 6 weeks of gestation, various tests are conducted to determine fetal well-being.
Among the tests used are the Biophysical Profile (BPP), Nonstress Test (NST), and Fetal Movement (FM) count. However, a Maternal blood count is not typically used for assessing fetal well-being directly.
It is a general diagnostic measure for the mother's health but does not provide specific information regarding fetal condition.
Fetal viability is the ability of the fetus to survive outside the uterus; after 26 weeks gestation, the survival rate is above 90% with medical care.
The average weight of a full-term infant at birth is around 3.4 kg (7.5 lb), and low birth weight is defined as less than 2.5 kg (5.5 lb). Intrauterine growth restriction (IUGR) is the leading cause of low birth weight and can occur due to maternal, fetal, or placental factors.