Diet before Down syndrome screening

Down syndrome screening is a test that women must do during pregnancy. Even if the test can effectively determine whether the fetus in a woman's body is likely to have Down syndrome, the price of Down syndrome screening is relatively high. It is usually done when a woman is four or five months pregnant. There are also many precautions during Down syndrome screening that will affect the results of the Down syndrome screening. So what are the dietary precautions the day before Down syndrome screening?

Scenario simulation: How long does it take to get the hospital report after doing Down syndrome screening?

First of all, before doing the Down syndrome screening test, the pregnant mother does not need to fast and venous blood is drawn.

Generally, the screening results can be obtained within 1 to 2 weeks after the blood is drawn.

However, considering the different situations of hospitals in different places, some hospitals do not have a unified time for issuing Down syndrome screening reports. What is the role of Down syndrome screening?

The Down syndrome screening we most often talk about is to draw serum from pregnant women and test the maternal serum.

The detection method calculates the risk factor of giving birth to a fetus with congenital defects by combining the pregnant woman's due date, weight, age and gestational age at the time of blood collection.

What does MOM mean on the Down syndrome screening report, a popular screening method at present?

It should be noted that the contents of the three indicators in the above figure are dynamically changing in pregnant women, and the normal indicators corresponding to different gestational weeks are different.

Taking AFP and Free β-hCG as examples, as the gestational age increases, the reference standard values ​​will change accordingly.