Down syndrome screening 21 trisomy syndrome critical risk 1; 270

Patient's question:

I had my period on August 25th. On the 12th week and 2 days, I had a blood test, and the results showed a borderline risk of 1,270. Does this mean that out of 270 people, one person has the issue? Is it serious? Is there any way to remedy it? The doctor asked me to have a follow-up check-up in a month or go to the Provincial Maternal and Child Health Hospital. My family has no history of genetic diseases. What should I do?

Doctor's answer:

Medical Analysis: Hello, the Down syndrome screening is only a risk assessment method, not a definitive diagnostic method. Therefore, it only presents the concepts of high risk or low risk, without a definitive statement of whether there is a malformation or not. Your current screening result indicates a borderline value of 1/270, which means there is a 1 in 270 chance that the fetus may have Down syndrome. It does not mean that out of 270 people, one person will have a problem. In such cases, it is recommended to undergo further testing to determine clearly. If the definitive test confirms that the fetus is not a Down syndrome child, you can continue your pregnancy with peace of mind.
Advice: If the risk is low, you can generally feel more at ease, as the likelihood of malformation is relatively lower. If the risk is high, it is recommended to undergo amniocentesis to further determine whether it is truly a malformed child.

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