How accurate are 12 week dating scans
How accurate are 12 week dating scans - 1 to 1 chat rooms sex
The following tests should be performed if there is sufficient history that suggests a medical problem or if the patient is exhibiting signs of the lack of it: iron levels, oral glucose tolerance test, thyroid function tests, uric acid and liver function.
It is usually done as part of your first pregnancy visit.
Other blood tests: “A few scans are key during the first trimester,” says Dr Ann Tan, an obstetrician and gynaecologist in private practice.
“A Viability Scan can be done at six to eight weeks gestation to confirm that the foetus is developing well and that there are foetal heart pulsations, indicating a viable pregnancy.
Ultrasound is used to guide the needle so as not to harm your baby.
The procedure takes only a few minutes and the tissue is then sent to the laboratory for tests.
It takes between 10 days and two weeks for results.
There are no risks to the foetus as the tests are non-invasive.Dating of the pregnancy at this time is also the most accurate, dating to within a few days to a week.This will ensure that the Expected Due Date (EDD) is calculated with the most certainty.” The College of Obstetricians and Gynaecologists recommends that all women be given the choice of screening their pregnancy for chromosomal abnormalities, in particular for Down Syndrome.For example if you a tiny sac can be seen in the uterus, but the baby and its heart beat may not be detected yet.5 ½ weeks gestation means 5 ½ weeks from the first day of the last menstrual period, which is usually about 3 ½ weeks from the date of conception (confusing, isn’t it!) the fetus is clearly seen on trans-vaginal ultrasound and the heart beat can be seen at this early stage (90 to 110 beats per minute under 6 to 7 weeks, then 110 to 200 beats per minute as the baby matures).