Accuracy sonogram dating
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.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.The distance from the top of the pubic bone (symphysis pubis) to the top of the pregnant uterus (fundus) is measured in centimeters (cm). The SFH in centimeters should be equal to the gestational age in weeks.
View more details This theory continues to fascinate mothers-to-be, as many claim this at-home technique can be up to 92% accurate.If the nub is angled greater than a 30 degree angle in relation to the spine, it is likely a male fetus.If it is pointing straight out, under 30 degrees, or down, it is likely a female fetus!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.
We at MUMS understand that the first few months of pregnancy can be quite an anxious time for many women with various concerns as to whether the pregnancy is developing normally or that it may result in a miscarriage or even an ectopic pregnancy.