Advanced Screening Tests

During pregnancy monitoring, screening tests are used to detect anomalies in babies as early as possible. Screening tests allow to find the factors that cause certain diseases in people who do not have any diseases or to detect them within early treatment period. Screening tests detect high-risk subgroups and are not diagnostic. Advanced tests including diagnostic tests are applied to the detected subgroup.

Dual, triple and quad tests show whether the chance of giving birth to a baby with chromosomal anomaly has increased. However, screening tests may not detect all babies with chromosomal abnormalities. Also, screening tests do not show any disabilities, that is structural anomalies, that may be found in the baby. Screening tests do not cause direct side effects on pregnancy. However, depending on the results, there is a risk of complications such as loss of pregnancy in case of interventional actions such as amniocentesis and CVS. 

Dual Test

It is done between weeks 11-14 of pregnancy. When the baby is in the side-lying position in the womb, the transparent area behind the neck is measured. HCG and PAPP-A values ​​from the blood sample taken from the mother are measured with the parameters of age and gestational week. CVS can be performed if the risk of Down syndrome is greater than 1/270 or the nuchal translucency is more than 3 mm.

Triple Test

Between weeks 16-18 of pregnancy, HCG, 3 and AFP values ​​in the mother's blood are checked. The risk of Down syndrome and Trisomy 18 of the baby is checked by the parameters of the mother's age and gestational week. Amniocentesis can be performed for expectant mothers who are in the high-risk group as a result of the triple test.

Quad Test

It is usually done between weeks 16-18 of pregnancy. HCG + AFP + E3 + Inhibin-A levels in the expectant mother’s blood are calculated with parameters such as mother's age and gestational week.

NIPT Test

Fetal genetic diseases are screened on the blood sample taken from the mother without any interventional action. NIPT test makes it possible to detect the most common chromosomal abnormalities and some microdeletion syndromes during pregnancy.