Ultrasounds dating from lmp conception online dating conversation tips

24 Nov

For example, antenatal test interpretation may be dependent on gestational age.Specifically, the level of α-fetoprotein in both amniotic fluid and maternal serum is related to gestational age and when dates are inaccurate test results will be incorrect and misleading.Then subtract 3 months to get a due date of December 27.Another way to estimate your due date is to add 40 weeks to the first day of your last period.Another way to find out your due date is by the size of your uterus.

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I went for u/s to get a due date and the u/s showed that the fetus was 8 weeks and no heart beat. You will be in my prayers, hopefully this will happen to you. Went to doc he put me off my feet for 3 wks then the spotting stoped.

Similarly, the magnitude of increased optical density above baseline at 450 nm (delta OD 450) by amniotic fluid spectrophotometric measurement is used to predict the severity of fetal hemolytic disease in pregnancies complicated by rhesus isoimmunization.

Test results are interpreted based on Liley's zones relative to gestational age.

Again, inaccurate assessment of gestational age will lead to errors in assessing the severity of fetal sensitization by the delta OD 450.

Fetal growth assessment, either clinically or by ultrasound evaluation, also relies on accurate assessment of gestational age.