In order to reduce neonatal deformities and underdevelopment, most mothers will follow the doctor's advice and undergo timely prenatal checkups. But they can't understand the report and don't know how to judge the inspection results. So why does non-invasive DNA have negative values?
Everyone knows that the optimal age for childbirth is between 28 and 35 years old. Once a woman turns 35, we all refer to her as a high-risk pregnant woman. When high-risk pregnant women undergo prenatal check ups, doctors will recommend that they undergo non-invasive DNA testing to determine if the baby has any abnormalities based on the results of the non-invasive DNA test. If the value of non-invasive DNA is negative, it is normal because the range of values for non-invasive DNA does not start from positive numbers, but from negative numbers. The normal range for non-invasive DNA is negative three to positive three, so non-invasive DNA may have negative values.
The birth of non-invasive DNA has made a significant contribution to the prevention of birth defects in newborns. In clinical practice, the development of a baby can be determined by non-invasive DNA testing values. If the non-invasive DNA test results are normal, then pregnancy only needs to be done at the hospital at 24 weeks. Other checks are sufficient. Non invasive DNA testing is suitable for elderly mothers over 35 years old, as well as those at high risk of Down syndrome screening who need to go to the hospital for non-invasive DNA testing.
