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Gestational age, synonymous with menstrual age, is defined in weeks beginning from the first day of the last menstrual period (LMP) prior to conception.
Accurate determination of gestational age is fundamental to obstetric care and is important in a variety of situations.
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.
Interpretation of antenatal biophysical testing (non-stress tests and biophysical profiles) may be subject to variation with gestational age as well.A pregnancy can be seen from as early as 6 weeks from the first day of your last period (LMP) and not the date of conception.If you have had any bleeding or pain or any other symptoms then this scan will accurately confirm viability.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.