Inaccurate dating of the pregnancy

26-Jan-2020 17:21 by 4 Comments

Inaccurate dating of the pregnancy

Your levels of AFP vary during pregnancy so accurate pregnancy dating is imperative for more reliable screening results.

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MSAFP is a screening test that examines the level of alpha-fetoprotein in the mother’s blood during pregnancy. It is often part of the triple screen test that assesses whether further diagnostic testing may be needed.If you've already taken a test which came out negative, definitely take another one if it's been a week and your period still hasn't shown up.False-positives are possible, too, according to the Mayo Clinic.Most home pregnancy tests aren't sensitive enough to detect h CG before or on the first day of a missed period, according to the 2014 study.Although many tests claim to give an accurate reading early on in pregnancy, you may take that promise with a grain of salt once you understand how the tests actually work.It is very important to remember what a screening test is before getting one performed.

This will help alleviate some of the anxiety that can accompany test results.Results are usually returned between one and two weeks.MSAFP may be performed between the 14th and 22nd weeks of pregnancy, however it seems to be most accurate during the 16th to 18th week.Screening tests do not look only at results from the blood test.They compare a number of different factors (including age, ethnicity, results from blood tests, etc…) and then estimate what a person’s chances are of having an abnormality.A false positive is a very rare occurrence, while a false negative is as easy as taking your test a day too soon.