100% of Vassar, MI residents were US citizens in 2015, a number that is higher than the national average of 93%. The median age of native-born residents of Vassar, MI is 31.3, and the most common country of origin for those not born in the US was the Canada. Vassar, MI has 2,234 White residents and 202 Black residents.
SGA is not a synonym of LBW, VLBW or ELBW. Example: 35 week gestational age delivery, 2250g weight is appropriate for gestational age but is still LBW. One third of low-birth-weight neonates - infants weighing less than 2500g - are small for gestational age.
The mathematic formula for estimating the gestational age from measurements of the gestational sac is: Gestational age = 4 weeks plus (mean sac diameter in mm x days). For example, a gestational sac measuring 8 mm would be approximately 5 weeks and 1 day gestational age.(8mm equals 8 days; 4 weeks plus 8 days = 5 weeks and 1 day).eave this field blank. Keyword Tags: ultrasound sonogram gestational sac fetus early pregnancy. The gestational sac is the structure surrounding the fetus early in pregnancy and its shape early in pregnancy (usually before 8-10 weeks) is important.