What does Down syndrome screening test?

What is Down syndrome? Down syndrome is also called trisomy 21 syndrome. Simply put, normal people have a pair of chromosome 21, while patients have one more pair than normal people. Therefore, Down screening is mainly to eliminate the risk of congenital defects in the fetus, that is, to screen for abnormalities. Therefore, Down screening is still necessary, and the best time for Down screening is between the 15th and 20th weeks of pregnancy. The following is a practical demonstration:

Frequently asked questions about Down syndrome screening: vaccines

Do I need to be on an empty stomach for Down syndrome screening? Down syndrome screening does not require fasting. Although it is a blood test, it is mainly used to check whether the fetus has any deformities. It is different from general system tests. However, because the test is often related to the menstrual cycle, weeks of pregnancy, etc., it is best to consult the doctor about what preparations need to be made before the examination.

Even if there is no need for an empty stomach check, expectant mothers should bring some caloric foods. Going to the hospital may require waiting in line for a long time. Put some high-energy foods in your bag so that you can replenish energy in time if you feel hungry.

When will Down syndrome screening be produced? vaccine

Down syndrome screening and testing. The best time to test for Down syndrome is 15 to 20 weeks, which is also the early screening of babies with Down syndrome. The early screening is also recognized by the State Food and Drug Administration. The time for early screening is 9 to 14 weeks, and positive cases can be detected. Once it is discovered that the fetus is suffering from Down syndrome, the doctor will recommend terminating the pregnancy.

What is Down syndrome and how to screen for it? vaccine

Down syndrome is trisomy 21 syndrome. Patients with Down syndrome are also called Down children. Down children have one missing chromosome in the 21st sex chromosome compared to normal people, which is Down syndrome.

How to filter? Screening for Down syndrome is mainly based on the blood of pregnant women, testing the concentration of fetal alpha protein and human chorionic gonadotropin, and calculating the risk of Down syndrome based on the weight, age and gestational age of the pregnant woman.

Prevalence of symptoms in children with Down syndrome: vaccines

Symptoms of Down syndrome children: Down syndrome children are completely unable to be independent in life, have intellectual disabilities, delayed language development, often cry and make a fuss, are hungry, and are very quiet when going to the toilet. They also have various systemic complications and cannot be cured throughout their lives.

The prevalence of Down syndrome: In China, one in every 750 newborns will suffer from Down syndrome, also known as Down syndrome; Down syndrome children are more common in pregnant women over 35 years old, and Down syndrome children born to pregnant women over 35 years old account for 15% of the total number of babies born over 35 years old.

Although Down syndrome screening is a self-paid project, it is still a necessary project to be checked. Down syndrome screening can detect 60~70% of Down syndrome patients; the Down syndrome screening result is the risk factor or possibility of having a baby with Down syndrome; a low-risk screening result cannot 100% guarantee the health of the fetus; more professional skills and detailed information can be consulted with the doctor who examines you.