Patient's question:
Normal reference value results UnitAlpha-fetoprotein (AFP) 25.54 U/ml
Alpha-fetoprotein (AFP) (MOM) 0.48
0.41-2.49
Free beta-hCG (Fre-βhCG) 0.99 g/ml
Free beta-hCG (Fre-βhCG) (MOM) 0.09
0.26-2.49
Trisomy 18 risk: 1/670 ≥ 1/350 is high risk for Down syndrome
Trisomy 21 risk: 1/3300 ≥ 1/270 is high risk for open neural tube defects
Low risk
Low risk
Risk in age group: 1/1500 ≥ 1/430 is high risk
Trisomy 13 risk: 1/100
Doctor's answer:
Analysis of the condition: The triple screen test is a prenatal screening test for Down syndrome. The purpose is to determine the risk of the fetus having Down syndrome by testing the pregnant woman's blood. If the triple screen test results indicate a high risk of the fetus having Down syndrome, further diagnostic tests such as amniocentesis or chorionic villus sampling should be conducted.Advice: The triple screen test can detect 60-70% of Down syndrome-affected fetuses. It is important to note that the triple screen test can only help assess the likelihood of the fetus having Down syndrome but cannot definitively confirm whether the fetus actually has the condition. In other words, if the blood test results are elevated, it suggests a higher chance of the fetus being affected, but it does not necessarily mean there is a problem. Similarly, older pregnant women (over 35) have a higher chance of carrying a Down syndrome-affected fetus, but this does not guarantee that their fetus will have the condition. On the other hand, even if the test results are normal, it does not guarantee that the fetus will not be affected.
The current practice is to perform the triple screen test on all young pregnant women. If the results indicate a high risk, further diagnostic tests such as amniocentesis or chorionic villus sampling are conducted to determine whether the fetus's chromosomes are normal and whether it has Down syndrome. You should currently undergo amniocentesis.